Re: [zfs-discuss] question about COW and snapshots

2011-06-18 Thread Toby Thain
On 18/06/11 12:44 AM, Michael Sullivan wrote: > ... > Way off-topic, but Smalltalk and its variants do this by maintaining the > state of everything in an operating environment image. > ...Which is in memory, so things are rather different from the world of filesystems. --Toby > But then again

Re: [zfs-discuss] # disks per vdev

2011-06-18 Thread Edward Ned Harvey
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > boun...@opensolaris.org] On Behalf Of Marty Scholes > > On a busy array it is hard even to use the leds as indicators. Offline the disk. Light stays off. Use dd to read the disk. Light stays on. That should make it easy enough.

[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 Sigurd Karlsbak

[zfs-discuss] read data block

2011-06-18 Thread Henry Lau
Do anyone know how to walk back to the root if we are at the data block (level 0) in zfs? Is this possible since data block can be picked random and we don't know the parent of the indirect block at this level 0? Thanks Henry ___ zfs-discuss mailing li

[zfs-discuss] Finding disks [was: # disks per vdev]

2011-06-18 Thread Richard Elling
On Jun 17, 2011, at 12:55 AM, Lanky Doodle wrote: > Thanks Richard. > > How does ZFS enumerate the disks? In terms of listing them does it do them > logically, i.e; > > controller #1 (motherboard) >| >|--- disk1 >|--- disk2 > controller #3 >|--- disk3 >|--- disk4 >|--- d

Re: [zfs-discuss] zfs global hot spares?

2011-06-18 Thread Richard Elling
more below... On Jun 16, 2011, at 2:27 AM, Fred Liu wrote: > Fixing a typo in my last thread... > >> -Original Message- >> From: Fred Liu >> Sent: 星期四, 六月 16, 2011 17:22 >> To: 'Richard Elling' >> Cc: Jim Klimov; zfs-discuss@opensolaris.org >> Subject: RE: [zfs-discuss] zfs global hot sp

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

2011-06-18 Thread Richard Elling
On Jun 16, 2011, at 3:36 PM, Sven C. Merckens wrote: > Hi roy, Hi Dan, > > many thanks for Your responses. > > I am using napp-it to control the OpenSolaris-Systems > The napp-it-interface shows a dedup factor of 1.18x on System 1 and 1.16x on > System 2. You're better off disabling dedup for

Re: [zfs-discuss] Is ZFS internal reservation excessive?

2011-06-18 Thread Richard Elling
On Jun 17, 2011, at 4:07 PM, MasterCATZ wrote: > >> > ok what is the Point of the RESERVE > > When we can not even delete a file when their is no space left !!! > > if they are going to have a RESERVE they should make it a little smarter and > maybe have the FS use some of that free space so w

Re: [zfs-discuss] write cache partial-disk pools (was Server with 4 drives, how to configure ZFS?)

2011-06-18 Thread Richard Elling
On Jun 16, 2011, at 8:05 PM, Daniel Carosone wrote: > On Thu, Jun 16, 2011 at 10:40:25PM -0400, Edward Ned Harvey wrote: >>> From: Daniel Carosone [mailto:d...@geek.com.au] >>> Sent: Thursday, June 16, 2011 10:27 PM >>> >>> Is it still the case, as it once was, that allocating anything other >>>