Re: [zfs-discuss] Slow zfs writes

2013-02-11 Thread Roy Sigurd Karlsbakk
ill rate of the VDEVs first, then perhaps try to upgrade the zpool unless you have to be able to mount it on an older version of zpool (on S10 or similar). Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 98013356 r...@karlsbakk.net http://blogg.karlsbakk.net/ GPG Publi

Re: [zfs-discuss] ZIL devices and fragmentation

2012-07-30 Thread Roy Sigurd Karlsbakk
- Opprinnelig melding - > On Mon, Jul 30, 2012 at 9:38 AM, Roy Sigurd Karlsbakk > wrote: > >> > Also keep in mind that if you have an SLOG (ZIL on a separate > >> > device), and then lose this SLOG (disk crash etc), you will > >> > probably >

Re: [zfs-discuss] ZIL devices and fragmentation

2012-07-30 Thread Roy Sigurd Karlsbakk
k of SLOG devices. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 98013356 r...@karlsbakk.net http://blogg.karlsbakk.net/ GPG Public key: http://karlsbakk.net/roysigurdkarlsbakk.pubkey.txt -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elemen

Re: [zfs-discuss] ZIL devices and fragmentation

2012-07-30 Thread Roy Sigurd Karlsbakk
robably want two of them in a mirror… Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 98013356 r...@karlsbakk.net http://blogg.karlsbakk.net/ GPG Public key: http://karlsbakk.net/roysigurdkarlsbakk.pubkey.txt -- I all pedagogikk er det essensielt at pensum presenteres intelligibe

Re: [zfs-discuss] Can the ZFS "copies" attribute substitute HW disk redundancy?

2012-07-29 Thread Roy Sigurd Karlsbakk
e/degrade the > situation? > > Would the use of several copies cripple the write speeds? > > Can the extra copies be used by zio scheduler to optimize and > speed up reads, like extra mirror sides would? > > Thanks, > //Jim Klimov > > _________

Re: [zfs-discuss] Persistent errors?

2012-06-22 Thread Roy Sigurd Karlsbakk
CHRONIZE CACHE command failed (5) > > I've no idea what they are about (this is on Solaris 11 btw). No idea, sorry… Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 98013356 r...@karlsbakk.net http://blogg.karlsbakk.net/ GPG Public key: http://karlsbakk.net/roysigurd

Re: [zfs-discuss] Compatibility of Hitachi Deskstar 7K3000 HDS723030ALA640 with ZFS

2012-03-07 Thread Roy Sigurd Karlsbakk
g http://mail.opensolaris.org/mailman/listinfo/zfs-discuss -- Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 98013356 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært

[zfs-discuss] Deskstars and CCTL (aka TLER)

2011-09-07 Thread Roy Sigurd Karlsbakk
Hi all Reading the docs for the Hitachi drives, it seems CCTL (aka TLER) is settable for Deskstar drives. See page 97 in http://goo.gl/ER0WD Does anyone know if this is possible from OI/Solaris, or if this needs to be done on driver level? Vennlige hilsener / Best regards roy -- Roy Sigurd

Re: [zfs-discuss] BAD WD drives - defective by design?

2011-09-07 Thread Roy Sigurd Karlsbakk
f bad sectors start climbing. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv a

Re: [zfs-discuss] BAD WD drives - defective by design?

2011-09-07 Thread Roy Sigurd Karlsbakk
Or in yet other words: "Desktop drives aren't meant to be used for anything productive or important." Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presentere

Re: [zfs-discuss] [OpenIndiana-discuss] BAD WD drives - defective by design?

2011-08-29 Thread Roy Sigurd Karlsbakk
been part of a number of discussions which involved this - and you, I > think, actually. > > - Rich > > On Mon, Aug 29, 2011 at 5:07 PM, Roy Sigurd Karlsbakk > wrote: > > Hi all > > > > It seems recent WD drives that aren't "Raid edition" can c

Re: [zfs-discuss] [OpenIndiana-discuss] BAD WD drives - defective by design?

2011-08-29 Thread Roy Sigurd Karlsbakk
er of discussions which involved this - and you, I > think, actually. > > - Rich > > On Mon, Aug 29, 2011 at 5:07 PM, Roy Sigurd Karlsbakk > wrote: > > Hi all > > > > It seems recent WD drives that aren't "Raid edition" can cause > > rat

[zfs-discuss] BAD WD drives - defective by design?

2011-08-29 Thread Roy Sigurd Karlsbakk
r those "No Device" errors.... Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå ekses

Re: [zfs-discuss] [OpenIndiana-discuss] Question about ZFS/CIFS

2011-08-15 Thread Roy Sigurd Karlsbakk
> I'm not sure, but you may still need to do a chmod -R on each > filesystem to set the ACLs on each existing directory. Setting aclinherit didn't help much. It seems +x isn't inherited to files, only dirs. I found new files are created with the correct permissions, so I ju

Re: [zfs-discuss] Possible ZFS problem

2011-08-13 Thread Roy Sigurd Karlsbakk
r program, the I/O pattern would be the same. Blaming userspace for kernel issues is nonesense -- Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelli

Re: [zfs-discuss] [OpenIndiana-discuss] Question about ZFS/CIFS

2011-08-13 Thread Roy Sigurd Karlsbakk
'll try the one above first... Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv an

[zfs-discuss] Question about ZFS/CIFS

2011-08-12 Thread Roy Sigurd Karlsbakk
t, it breaks things when we have a software repository on this server. Does anyone know a way to counter this without chmod -R o+x? Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at p

Re: [zfs-discuss] unable to mount zfs file system..pl help

2011-08-12 Thread Roy Sigurd Karlsbakk
-0.5.2-1 This smells like an old redhat/centos/fedora installation. Use something newer if you want ZFS to work well Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum pres

Re: [zfs-discuss] ZFS read errors

2011-08-10 Thread Roy Sigurd Karlsbakk
Transport Errors: 0 > Vendor: ATA Product: ST31000340AS Revision: SD15 Serial No: > Size: 1000.20GB <1000204886016 bytes> > Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0 > Illegal Request: 7 Predictive Failure Analysis: 0 > /var/log$ > -- > This mess

Re: [zfs-discuss] Issues with supermicro

2011-08-10 Thread Roy Sigurd Karlsbakk
a stripe. I am interested more in max throughput of the local > storage at this point and time. > > On Wed, Aug 10, 2011 at 12:01 PM, Roy Sigurd Karlsbakk > wrote: > > What sort of load will this server be serving? sync or async writes? > > what sort of reads? random i/o o

Re: [zfs-discuss] Issues with supermicro

2011-08-10 Thread Roy Sigurd Karlsbakk
681+0 records in > >> 3503681+0 records out > >> 14351077376 bytes (14 GB) copied, 39.3747 s, 364 MB/s > > > > So, the problem here is that you're not testing the storage at all. > > You're basically measuring dd. > > > > To get meaningful resul

Re: [zfs-discuss] Large scale performance query

2011-08-07 Thread Roy Sigurd Karlsbakk
ervers. Could you check the drive temperature with smartctl or ipmi tools? Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imp

Re: [zfs-discuss] [vserver] hybrid zfs pools as iSCSI targets for vserver

2011-08-07 Thread Roy Sigurd Karlsbakk
ond * 4KB = 40MBps maximum throughput for any one iSCSI > conversation. That's pretty lousy disk throughput. That's why, back in 1992, the sliding window protocol was created (http://tools.ietf.org/html/rfc1323), so that a peer won't wait for a TCP ACK before resuming operation.

Re: [zfs-discuss] Question about WD drives with Super Micro systems

2011-08-06 Thread Roy Sigurd Karlsbakk
y > running periodic scrubs. We have some 180 drives on these systems, with 1068-based chipsets, and it seems problems arouse when traffic is high. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er d

Re: [zfs-discuss] Large scale performance query

2011-08-06 Thread Roy Sigurd Karlsbakk
perhaps a couple of weeks, but unless the pool is full (something that's strictly discouraged), a few days should do. I'm currently replacing WD drives on a server with 4 9-drive RAIDz2 VDEVs, and it takes about two days. A single drive replacement takes about 24 hours. Vennlige hi

Re: [zfs-discuss] [OpenIndiana-discuss] Question about WD drives with Super Micro systems

2011-08-06 Thread Roy Sigurd Karlsbakk
, or most, of the drives ditched by ZFS have shown to be quite good indeed. I guess this is a WD vs Intel SAS expanders issue Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pens

Re: [zfs-discuss] Question about WD drives with Super Micro systems

2011-08-06 Thread Roy Sigurd Karlsbakk
ener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opprinnels

[zfs-discuss] Question about WD drives with Super Micro systems

2011-08-06 Thread Roy Sigurd Karlsbakk
ee. We've seen these issues on several machines, so hardware failure seem not to be the case. Have anyone here used WD drives with LSI controllers (3801/3081/9211) with Super Micro machines? Any success stories? Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 9754268

Re: [zfs-discuss] Wrong rpool used after reinstall!

2011-08-02 Thread Roy Sigurd Karlsbakk
(leave the new rpool drives unplugged) and export it again. Once you have rebooted on the new rpool, you can reimport the old rpool with a new name (rpool import someid newname). Keep in mind that reimporting an rpool may render it useless for booting, at least that's not optimal. Vennlig

Re: [zfs-discuss] Large scale performance query

2011-07-25 Thread Roy Sigurd Karlsbakk
Bps) to each backplane. With a maximum of 24 drives per back, this should probably suffice, since you'll never get 150MB/s sustained from all drives. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all ped

Re: [zfs-discuss] Large scale performance query

2011-07-25 Thread Roy Sigurd Karlsbakk
ning during runtime. Also, those drives are placed in a rather awkward slot. If planning to use RAIDz, a couple of SSDs for the SLOG will help write performance a lot especially during scrub/resilver. For streaming, L2ARC won't be of much use, though. Finally, a few spares won'

Re: [zfs-discuss] recover raidz from fried server ??

2011-07-19 Thread Roy Sigurd Karlsbakk
bel 3 > root@san:~# > -- > This message posted from opensolaris.org > ___ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss -- Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk

Re: [zfs-discuss] recover raidz from fried server ??

2011-07-19 Thread Roy Sigurd Karlsbakk
1 to get it. The current build is still at zpool v28, but with a bunch of fixes as compared to the old one from osol Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenter

Re: [zfs-discuss] Zil on multiple usb keys

2011-07-18 Thread Roy Sigurd Karlsbakk
> > ___ > > zfs-discuss mailing list > > zfs-discuss@opensolaris.org > > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss > -- > Tiernan O'Toole > blog.lotas-smartman.net > www.tiernanotoolephotography.com > www.the-hairy-one.com > ___

Re: [zfs-discuss] Summary: Dedup memory and performance (again, again)

2011-07-09 Thread Roy Sigurd Karlsbakk
> > From: Roy Sigurd Karlsbakk [mailto:r...@karlsbakk.net] > > Sent: Saturday, July 09, 2011 2:33 PM > > > > Could you test with some SSD SLOGs and see how well or bad the > > system > > performs? > > These are all async writes, so slog won't be

Re: [zfs-discuss] Replacement disks for Sun X4500

2011-07-09 Thread Roy Sigurd Karlsbakk
byte sectors Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer

Re: [zfs-discuss] Summary: Dedup memory and performance (again, again)

2011-07-09 Thread Roy Sigurd Karlsbakk
dedup is not to blame for obtaining merely 2x or 4x > performance > gain over the non-dedup equivalent. Could you test with some SSD SLOGs and see how well or bad the system performs? Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karls

Re: [zfs-discuss] Pure SSD Pool

2011-07-09 Thread Roy Sigurd Karlsbakk
ool. > > Also what drives do you run as a pure SSD pool? Most drives should work well for a pure SSD pool. I have a postgresql database on a linux box on a mirrored set of C300s. AFAIK ZFS doesn't yet support TRIM, so that can be an issue. Apart from that, it should work well.

Re: [zfs-discuss] 700GB gone? "zfs list" and "df" differs!

2011-07-04 Thread Roy Sigurd Karlsbakk
laris.org > ___ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss -- Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net ht

[zfs-discuss] Problems installing grub

2011-07-04 Thread Roy Sigurd Karlsbakk
/ Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I

Re: [zfs-discuss] 700GB gone? "zfs list" and "df" differs!

2011-07-04 Thread Roy Sigurd Karlsbakk
> NAME USED AVAIL REFER MOUNTPOINT > TempStorage 916G 45,1G 37,3G /mnt/TempStorage > TempStorage/Backup 799G 45,1G 177G /mnt/TempStorage/Backup < OBS! > 800GB! You probably have snapshots eating the remaining 620GB... Vennlige hilsener / Best regards roy -- Roy Sigurd

Re: [zfs-discuss] 700GB gone?

2011-07-01 Thread Roy Sigurd Karlsbakk
re might be some slight overhead and the fact that 1TB as reported by drive producers equals 0.9TiB as reported by the OS (1TB = 10^12 bytes, 1TiB = 2^40 bytes). The 1.5TB drive will be shown as a 1.35 drive or so. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 975

Re: [zfs-discuss] replace zil drive

2011-06-27 Thread Roy Sigurd Karlsbakk
o/zfs-discuss > -- > ++ > | | > | Климов Евгений, Jim Klimov | > | технический директор CTO | > | ЗАО "ЦОС и ВТ" JSC COS&HT | > | | > | +7-903-7705859 (cellular) mailto:jimkli...@cos.ru | > | CC:ad...@cos.ru,jimkli...@gmail.com | > +

Re: [zfs-discuss] recovering from "zfs destroy -r"

2011-06-27 Thread Roy Sigurd Karlsbakk
- Original Message - > Hi, > Is there a simple way of rolling back to a specific TXG of a volume to > recover from such a situation? You can't undo a zfs destroy - restore from backup... -- Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...

Re: [zfs-discuss] Cannot format 2.5TB ext disk (EFI)

2011-06-23 Thread Roy Sigurd Karlsbakk
D -- Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med f

[zfs-discuss] Question about drive LEDs

2011-06-18 Thread Roy Sigurd Karlsbakk
Hi all I have a few machines setup with OI 148, and I can't make the LEDs on the drives work when something goes bad. The chassies are supermicro ones, and work well, normally. Any idea how to make drive LEDs wirk with this setup? -- Vennlige hilsener / Best regards roy -- Roy S

Re: [zfs-discuss] # disks per vdev

2011-06-16 Thread Roy Sigurd Karlsbakk
in rate in a pool/vdev, the lower ones will probably pull down performance, so if you're considering "green" drives, you should use that for all the drives. Mixing Seagate, Samsung and Western drives should work well for this. Vennlige hilsener / Best regards roy -- Roy Sigurd Kar

Re: [zfs-discuss] OpenIndiana | ZFS | scrub | network | awful slow

2011-06-15 Thread Roy Sigurd Karlsbakk
n to require a LOT of memory and/or L2ARC, and 24GB isn't really much with 34TBs of data. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. D

Re: [zfs-discuss] # disks per vdev

2011-06-15 Thread Roy Sigurd Karlsbakk
up somewhere else, I'd be a wee bit paranoid indeed :) Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ fo

Re: [zfs-discuss] ZFS for Linux?

2011-06-14 Thread Roy Sigurd Karlsbakk
an use the operating system or distro you like for the rest of the services. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært impera

Re: [zfs-discuss] Disk replacement need to scan full pool ?

2011-06-14 Thread Roy Sigurd Karlsbakk
you have a backup in case the shit hits the fan Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle

Re: [zfs-discuss] ZFS Hard link space savings

2011-06-13 Thread Roy Sigurd Karlsbakk
$1 }'`; do size=$(( $size + $i )); done; echo $size Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedag

Re: [zfs-discuss] [OpenIndiana-discuss] Another zfs issue

2011-06-04 Thread Roy Sigurd Karlsbakk
if data errors are found and are not correctable, they will stay? > If so, is there another workaround than upgrading to something? Is > this bug still in s11ex? Can someone please fill me in on how this problem can be fixed? Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47)

Re: [zfs-discuss] Another zfs issue

2011-06-01 Thread Roy Sigurd Karlsbakk
y will stay? If so, is there another workaround than upgrading to something? Is this bug still in s11ex? Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt

Re: [zfs-discuss] changing vdev types

2011-06-01 Thread Roy Sigurd Karlsbakk
really recommended. Try zpool add -f somedev to a raidz3 pool, and it will work, but break redundancy Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intell

[zfs-discuss] Another zfs issue

2011-06-01 Thread Roy Sigurd Karlsbakk
0 0 0 0 c4t44d0 Is there a good explaination why I can't detach this mirror from the VDEV? Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligib

Re: [zfs-discuss] Is another drive worth anything?

2011-05-31 Thread Roy Sigurd Karlsbakk
ZFS reads from all drives in a mirror. Theoretically, you'll get a 50% read increase, but I doubt it'll be that high in practice. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt

Re: [zfs-discuss] optimal layout for 8x 1 TByte SATA (consumer)

2011-05-29 Thread Roy Sigurd Karlsbakk
ll help a lot to make the system more resposible during scrub/resilver, again, at least on Solaris and friends. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presen

Re: [zfs-discuss] optimal layout for 8x 1 TByte SATA (consumer)

2011-05-26 Thread Roy Sigurd Karlsbakk
Seagates, refurbished. I'd scrub > once a week, that'd probably suck on raidz2, too? I see no problems with that. I've had rather large pools in production with 'commodity' drives without much issues. Every now and then a drive fails, but then, no pool failures yet.

[zfs-discuss] ZFS issues and the choice of platform

2011-05-25 Thread Roy Sigurd Karlsbakk
ort when the shit hits the fan? -- Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anve

Re: [zfs-discuss] [OpenIndiana-discuss] zpool lost, and no pools available?

2011-05-24 Thread Roy Sigurd Karlsbakk
want to RTFM yourself befor replying. The docs say standard procedure is to put the pool into wait, which is ok, but the problem is that not only the pool in question is put into wait, but all pools. Please refrain from RTFMing people before digging into the material Vennlige hilsener / Best regards r

Re: [zfs-discuss] Bad pool...

2011-05-24 Thread Roy Sigurd Karlsbakk
pool and indeed the system unusable (if two drives in a raidz2 are lost, but resilvererd, losing the third will hang the system). The remedy seemed to be to zpool detach the drives. Still, the bug(s) exist(s) to allow a system to be rendered unusable just with a few drives lost, long befor

Re: [zfs-discuss] Bad pool...

2011-05-24 Thread Roy Sigurd Karlsbakk
ilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opp

[zfs-discuss] zpool lost, and no pools available?

2011-05-24 Thread Roy Sigurd Karlsbakk
then a third drive lost), and the system is hanging. Not even the rpool seems to be available. Can someone please confirm this or tell me if there is a workaround available? Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net

[zfs-discuss] Bad pool...

2011-05-24 Thread Roy Sigurd Karlsbakk
stick. The drive that has died still hasn't been taken over by a spare, although the two spares show up as AVAIL. Anyone that know how I can fix this? Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pe

Re: [zfs-discuss] Extremely slow zpool scrub performance

2011-05-16 Thread Roy Sigurd Karlsbakk
t regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I

Re: [zfs-discuss] ls reports incorrect file size

2011-05-02 Thread Roy Sigurd Karlsbakk
files when using 'ls -s' or du commands: > > These are probably just sparse files. Nothing to be alarmed about. or very tightly compressed files (like those from a dd if=/dev/zero). du and ls -ls will show how much is stored - ls -l will show the theoretical file size. Vennlige h

Re: [zfs-discuss] Dedup and L2ARC memory requirements (again)

2011-04-30 Thread Roy Sigurd Karlsbakk
have no > compression.) > > I ran again. > > Still spewing messages. This can't be a good sign. > > Anyone know what it means, or what to do about it? IIRC it runs out of memory, not space. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 9

Re: [zfs-discuss] Dedup and L2ARC memory requirements (again)

2011-04-29 Thread Roy Sigurd Karlsbakk
ion with verify (which I would use anyway, since there are always tiny chances of collisions), why would sha256 be a better choice? Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pen

Re: [zfs-discuss] Dedup and L2ARC memory requirements (again)

2011-04-26 Thread Roy Sigurd Karlsbakk
uently > referenced DDT block will get > evicted from the ARC to the L2ARC then evicted from the L2ARC. and with the default size of a zfs configuration's metadata being (ram size - 1GB) / 4, without tuning, and with 128kB blocks all over, you'll need some 5-6GB+ per teraby

Re: [zfs-discuss] Dedup and L2ARC memory requirements (again)

2011-04-25 Thread Roy Sigurd Karlsbakk
irements) + 14G because of dedup + 7G > because of L2ARC. Thanks, but one more ting: Add some tuning parameters, such as "set zfs:zfs_arc_meta_limit = somevalue in /etc/system" to help zfs use more memory for its metadata (like the DDT), as it won't use more than (RAM-1

Re: [zfs-discuss] zpool scrub on b123

2011-04-18 Thread Roy Sigurd Karlsbakk
;t know if it's possible to keep them in zfs or otherwise. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for

Re: [zfs-discuss] zpool scrub on b123

2011-04-16 Thread Roy Sigurd Karlsbakk
robably work well again for a while. I replaced the 3801 with a 9200 and the problem was gone. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det e

Re: [zfs-discuss] trouble replacing spare disk

2011-04-05 Thread Roy Sigurd Karlsbakk
inner 2007, 2008, 2009, 2010 Follow us on Twitter http://twitter.com/uniofleicsnews ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss -- Vennlige hilsener / Best regards ro

Re: [zfs-discuss] trouble replacing spare disk

2011-04-05 Thread Roy Sigurd Karlsbakk
zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss -- Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presente

Re: [zfs-discuss] Zpool resize

2011-04-04 Thread Roy Sigurd Karlsbakk
now I see > new > value if I choosed partition -> print, but when I exit from format and > reboot the old value is stay. How I can write new settings? Normally no change should be needed. Can you please paste the output from 'zpool status'? Vennlige hilsener / Best regards roy -

Re: [zfs-discuss] Zpool resize

2011-04-04 Thread Roy Sigurd Karlsbakk
just used the whole device, autoexpand should work automatically once enabled (or after a few minutes - see my earlier post). If you can paste the output of 'zpool status', that should show if you're using the whole device or a slice. Vennlige hilsener / Best regards roy -- Roy Sig

Re: [zfs-discuss] Zpool resize

2011-04-04 Thread Roy Sigurd Karlsbakk
ing 21 2TB drives with 3TB ones, it took some 2-3 minutes before the pool was being expanded, and then one VDEV at a time, so simply turning autoexpand on and then off may be a bit too quick. Leave it on for a while... Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r

Re: [zfs-discuss] Cannot remove zil device

2011-04-01 Thread Roy Sigurd Karlsbakk
> You can add and remove mirrored or non-mirrored log devices. > > Jordan is probably running into CR 7000154: > > cannot remove log device I tried to google that, but couldn't find anything but this thread. Got a link to that bug? Roy Sigurd Karlsbakk (+47) 97542685 r..

Re: [zfs-discuss] Cannot remove zil device

2011-03-31 Thread Roy Sigurd Karlsbakk
> http://pastebin.com/nD2r2qmh > > > Here is zpool status and zpool version The only thing I wonder about here, is why you have two striped log devices. I didn't even know that was supported. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@k

Re: [zfs-discuss] Cannot remove zil device

2011-03-31 Thread Roy Sigurd Karlsbakk
> zpool remove storage c4t11d0 Can you pastebin 'zpool status' as well? PS: Get a decent email client - your quoting is severely broken :P Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all peda

Re: [zfs-discuss] Cannot remove zil device

2011-03-31 Thread Roy Sigurd Karlsbakk
problem that turned out to be a PEBKAC - I tried to remove devices in a mirror, not the mirror with the devices... Can you paste the command(s) you're using for this? Btw, log device removal is in from zpool v19, so the one you're using should work. Vennlige hilsener / Best r

Re: [zfs-discuss] A resilver record?

2011-03-29 Thread Roy Sigurd Karlsbakk
uld, but doing so on the same pool won't lead to defragmentation. With a new pool, though, it'll do the exact same as sending over the network. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk

Re: [zfs-discuss] zfs incremental send?

2011-03-29 Thread Roy Sigurd Karlsbakk
- Original Message - > On 2011-Mar-29 02:19:30 +0800, Roy Sigurd Karlsbakk > wrote: > >Is it (or will it) be possible to do a partial/resumable zfs > >send/receive? If having 30TB of data and only a gigabit link, such > >transfers takes a while, and if interrupt

[zfs-discuss] zfs incremental send?

2011-03-28 Thread Roy Sigurd Karlsbakk
such transfers takes a while, and if interrupted, will require a re-transmit of all the data. What could make a partial transfer work? Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensie

Re: [zfs-discuss] Any use for extra drives?

2011-03-26 Thread Roy Sigurd Karlsbakk
, don't shoot me if I'm wrong). Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå ekse

Re: [zfs-discuss] Good benchmarking software?

2011-03-22 Thread Roy Sigurd Karlsbakk
to do it. > If you like you could send some example Reports. That would be brilliant :) Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det

[zfs-discuss] Good benchmarking software?

2011-03-22 Thread Roy Sigurd Karlsbakk
ing a resilver/scrub. So - question is quite simple - where can I find a good way to do this without too much hassle? Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presente

Re: [zfs-discuss] A resilver record?

2011-03-21 Thread Roy Sigurd Karlsbakk
es are having i/o errors, that may slow down the whole pool. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for a

Re: [zfs-discuss] A resilver record?

2011-03-21 Thread Roy Sigurd Karlsbakk
/scrub, but without them, it wasn't very useful. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger

Re: [zfs-discuss] A resilver record?

2011-03-20 Thread Roy Sigurd Karlsbakk
may have many > disks. My answer was not meant to be a generic one, but based on the original question, which was about a raidz2 VDEV, but then, thanks for the info Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.n

Re: [zfs-discuss] A resilver record?

2011-03-20 Thread Roy Sigurd Karlsbakk
ver times, but then, I guess that was wrong. Btw after replacing some 2TB drives with 3TB ones in three VDEVs that were 95% full at the time, resilver times dropped by 30%, so I guess very full VDEVs aren't much fun even on the resilver side. Vennlige hilsener / Best regards roy -- Roy S

Re: [zfs-discuss] A resilver record?

2011-03-20 Thread Roy Sigurd Karlsbakk
depends on the number of drives in the VDEV(s), traffic patterns during resilver, speed VDEV fill, of drives etc. Still, close to 6 days is a lot. Can you detail your configuration? Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg

Re: [zfs-discuss] best migration path from Solaris 10

2011-03-18 Thread Roy Sigurd Karlsbakk
Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fre

Re: [zfs-discuss] GNU 'cp -p' can't work well with ZFS-based-NFS

2011-03-16 Thread Roy Sigurd Karlsbakk
-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss -- Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det

Re: [zfs-discuss] cannot replace c10t0d0 with c10t0d0: device is too small

2011-03-05 Thread Roy Sigurd Karlsbakk
was a bit smaller than the original. This was a replacement part from Sun^WOracle... Since the machine was a compute node, I ended up reinstalling it instead of waiting for another replacement. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://b

Re: [zfs-discuss] cannot replace c10t0d0 with c10t0d0: device is too small

2011-03-04 Thread Roy Sigurd Karlsbakk
have to I would rather buy one new disk then > 4. Get one that's a bit larger. It won't cost you a fortune. If the reseller is nice, you may even return the old one.. Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk

Re: [zfs-discuss] [illumos-Developer] ZFS spare disk usage issue

2011-03-04 Thread Roy Sigurd Karlsbakk
nd that spare may not have > > the > > same RAS properties as other devices in your RAID-Z stripe (it may > > put > > 3 disks on the same controller in one stripe, for example). > > > > > > - Eric > > > > On Fri, Mar 4, 2011 at 7:06 AM, Roy Sigurd K

Re: [zfs-discuss] [illumos-Developer] ZFS spare disk usage issue

2011-03-04 Thread Roy Sigurd Karlsbakk
ay put 3 disks on the same controller in one stripe, for example). - Eric On Fri, Mar 4, 2011 at 7:06 AM, Roy Sigurd Karlsbakk < r...@karlsbakk.net > wrote: Hi all I just did a small test on RAIDz2 to check whether my suspicion was right about ZFS not treating spares as replic

Re: [zfs-discuss] [illumos-Developer] ZFS spare disk usage issue

2011-03-04 Thread Roy Sigurd Karlsbakk
b being installed. > ODT: http://karlsbakk.net/ZFS/ZFS%20Spare%20disk%20usage.odt > PDF: http://karlsbakk.net/ZFS/ZFS%20Spare%20disk%20usage.pdf These are mow updated as well Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/

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