>
> On the Dell website I've the choice between :
>
>
>SAS 6Gbps External Controller
>PERC H800 RAID Adapter for External JBOD, 512MB Cache, PCIe
>PERC H800 RAID Adapter for External JBOD, 512MB NV Cache, PCIe
>PERC H800 RAID Adapter for External JBOD, 1GB NV Cache, PCIe
>
Hi Brandon,
On Mon, Mar 5, 2012 at 9:52 AM, luis Johnstone
mailto:l...@luisjohnstone.com>> wrote:
As far as I can tell, the Hitachi Deskstar 7K3000 (HDS723030ALA640) uses
512B sectors and so I presume does not suffer from such issues (because it
doesn't lie about the physical layout of sectors o
Hi,
are those DELL branded WD disks? DELL tends to manipulate the firmware of
the drives so that power handling with Solaris fails. If this is the case
here:
Easiest way to make it work is to modify /kernel/drv/sd.conf and add an
entry
for your specific drive similar to this
sd-config-list= "WD
Hi,
my oi151 based home NAS is approaching a frightening "drive space" level. Right
now the data volume is a 4*1TB Raid-Z1, 3 1/2" local disks individually
connected to an 8 port LSI 6Gbit controller.
So I can either exchange the disks one by one with autoexpand, use 2-4 TB disks
and be happy.
Hi Tim,
thanks to you and the others for answering.
> worst case). The worst case for 512 emulated sectors on zfs is
> probably small (4KB or so) synchronous writes (which if they mattered
> to you, you would probably have a separate log device, in which case
> the data disk write penalty may no
Hi Carson,
>
> I have 2 Sans Digital TR8X JBOD enclosures, and they work very well.
> They also make a 4-bay TR4X.
>
> http://www.sansdigital.com/towerraid/tr4xb.html
> http://www.sansdigital.com/towerraid/tr8xb.html
looks nice! The only thing coming to mind is that according to the
specificati
Hi Bob,
> On Mon, 18 Jun 2012, Koopmann, Jan-Peter wrote:
>>
>> looks nice! The only thing coming to mind is that according to the
>> specifications the enclosure is 3Gbits "only". If I choose
>> to put in a SSD with 6Gbits this would be not optimal. I
8/12 12:19 AM, Koopmann, Jan-Peter wrote:
>> Hi Carson,
>>
>>
>>I have 2 Sans Digital TR8X JBOD enclosures, and they work very well.
>>They also make a 4-bay TR4X.
>>
>>http://www.sansdigital.com/towerraid/tr4xb.html
>>http://www.sansdig
>
> What makes you think the Barracuda 7200.14 drives report 4k sectors?
http://www.mail-archive.com/zfs-discuss@opensolaris.org/msg48912.html
Nigel stated this here a few days ago. I did not check for myself. Maybe Nigel
can comment on this?
As for the question "why do you want 4k drives":
Hi Timothy,
>
> I think that if you are running an illumos kernel, you can use
> /kernel/drv/sd.conf and tell it that the physical sectors for a disk
> model are 4k, despite what the disk says (and whether they really
> are). So, if you want an ashift=12 pool on disks that report 512
> sectors,
Hi Karl,
Recently, however, it has started taking over 20hours to complete. Not much has
happened to it in that time: A few extra files added, maybe a couple of
deletions, but not a huge amount. I am finding it difficult to understand why
performance would have dropped so dramatically.
FYI th
Hi Edward,
From:
zfs-discuss-boun...@opensolaris.org<mailto:zfs-discuss-boun...@opensolaris.org>
[mailto:zfs-discuss-
boun...@opensolaris.org<mailto:boun...@opensolaris.org>] On Behalf Of Koopmann,
Jan-Peter
all I can tell you is that I've had terrible scrub rates when I u
Hi,
OK then, I guess my next question would be what's the best way to "undedupe"
the data I have?
Would it work for me to zfs send/receive on the same pool (with dedup off),
deleting the old datasets once they have been 'copied'?
yes. Worked for my.
I think I remember reading somewhere that
Why should it?
Unless you do a shrink on the vmdk and use a zfs variant with scsi unmap
support (I believe currently only Nexenta but correct me if I am wrong) the
blocks will not be freed, will they?
Kind regards
JP
Sent from a mobile device.
Am 10.02.2013 um 11:01 schrieb "Datnus" :
> I
I forgot about compression. Makes sense. As long as the zeroes find their way
to the backend storage this should work. Thanks!
Kind regards
JP
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Hi,
my system is running oi148 on a super micro X8SIL-F board. I have two pools (2
disc mirror, 4 disc RAIDZ) with RAID level SATA drives. (Hitachi HUA72205 and
SAMSUNG HE103UJ). The system runs as expected however every few days
(sometimes weeks) the system comes to a halt due to these errors
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