[zfs-discuss] Computer usable output for zpool commands

2008-02-01 Thread Nicolas Dorfsman
Hi, I wrote an hobbit script around lunmap/hbamap commands to monitor SAN health. I'd like to add detail on what is being hosted by those luns. With svm metastat -p is helpful. With zfs, zpool status output is awful for script. Is there somewhere an utility to show zpool informations in a scrip

[zfs-discuss] Case #65841812

2008-02-01 Thread Scott Macdonald - Sun Microsystem
Below is my customers issue. I am stuck on this one. I would appreciate if someone could help me out on this. Thanks in advance! ZFS Checksum feature: I/O checksum is one of the main ZFS features; however, there is also block checksum done by Oracle. This is good when utilizing UFS since it

[zfs-discuss] How to get ZFS use the whole disk?

2008-02-01 Thread Roman Morokutti
Hi, I am new to ZFS and recently managed to get a ZFS root to work. These were the steps I have done: 1. Installed b81 (fresh install) 2. Unmounted /second_root on c0d0s4 3. Removed /etc/vfstab entry of /second_root 4. Executed ./zfs-actual-root-install.sh c0d0s4 5. Rebooted (init 6) After selec

[zfs-discuss] Un/Expected ZFS performance?

2008-02-01 Thread jiniusatwork-zfs
I'm running Postgresql (v8.1.10) on Solaris 10 (Sparc) from within a non-global zone. I originally had the database "storage" in the non-global zone (e.g. /var/local/pgsql/data on a UFS filesystem) and was getting performance of "X" (e.g. from a TPC-like application: http://www.tpc.org). I then

[zfs-discuss] ZFS raidz small IO write performance compared to raid controller

2008-02-01 Thread Matt Ingenthron
Hi all, Does anyone have any data to show how ZFS raidz with the on-disk cache enabled for small, random IOs compares to a raid controller card with cache in raid 5. I'm working on a very competitive RFP, and one thing that could give us an advantage is the ability to remove this controller ca

Re: [zfs-discuss] Un/Expected ZFS performance?

2008-02-01 Thread Marion Hakanson
[EMAIL PROTECTED] said: > . . . > ZFS filesystem [on StorageTek 2530 Array in RAID 1+0 configuration > with a 512K segment size] > . . . > Comparing run 1 and 3 shows that ZFS is roughly 20% faster on > (unsynchronized) writes versus UFS. What's really surprising, to me at least, > is

[zfs-discuss] ZFS replication strategies

2008-02-01 Thread Vincent Fox
Does anyone have any particularly creative ZFS replication strategies they could share? I have 5 high-performance Cyrus mail-servers, with about a Terabyte of storage each of which only 200-300 gigs is used though even including 14 days of snapshot space. I am thinking about setting up a singl

Re: [zfs-discuss] Case #65841812

2008-02-01 Thread Richard Elling
Scott Macdonald - Sun Microsystem wrote: > Below is my customers issue. I am stuck on this one. I would appreciate > if someone could help me out on this. Thanks in advance! > > > > ZFS Checksum feature: > > I/O checksum is one of the main ZFS features; however, there is also > block checksum d

Re: [zfs-discuss] ZFS replication strategies

2008-02-01 Thread Dale Ghent
On Feb 1, 2008, at 1:15 PM, Vincent Fox wrote: > Ideally I'd love it if ZFS directly supported the idea of rolling > snapshots out into slower secondary storage disks on the SAN, but in > the meanwhile looks like we have to roll our own solutions. If you're running some recent SXCE build, you

Re: [zfs-discuss] ZFS replication strategies

2008-02-01 Thread Erast Benson
Take a look on NexentaStor - its a complete 2nd tier solution: http://www.nexenta.com/products and AVS is nicely integrated via management RPC interface which is connecting multiple NexentaStor nodes together and greatly simplifies AVS usage with ZFS... See demo here: http://www.nexenta.com/demo

Re: [zfs-discuss] ZFS configuration for a thumper

2008-02-01 Thread Marion Hakanson
[EMAIL PROTECTED] said: > Depending on needs for space vs. performance, I'd probably pixk eithr 5*9 or > 9*5, with 1 hot spare. [EMAIL PROTECTED] said: > How you can check the speed (I'm totally newbie on Solaris) We're deploying a new Thumper w/750GB drives, and did space vs performance

[zfs-discuss] ZFS and SAN

2008-02-01 Thread Christophe Rolland
Hi all we consider using ZFS for various storages (DB, etc). Most features are great, especially the ease of use. Nevertheless, a few questions : - we are using SAN disks, so most JBOD recommandations dont apply, but I did not find many experiences of zpool of a few terabytes on Luns... anybody

Re: [zfs-discuss] ZFS replication strategies

2008-02-01 Thread Jim Dunham
Erast, > Take a look on NexentaStor - its a complete 2nd tier solution: > > http://www.nexenta.com/products > > and AVS is nicely integrated via management RPC interface which is > connecting multiple NexentaStor nodes together and greatly simplifies > AVS usage with ZFS... See demo here: > > http

Re: [zfs-discuss] ZFS raidz small IO write performance compared to raid

2008-02-01 Thread Anton B. Rang
For small random I/O operations I would expect a substantial performance penalty for ZFS. The reason is that RAID-Z is more akin to RAID-3 than RAID-5; each read and write operation touches all of the drives. RAID-5 allows multiple I/O operations to proceed in parallel since each read and write

Re: [zfs-discuss] ZFS raidz small IO write performance compared to raid controller

2008-02-01 Thread Richard Elling
Matt Ingenthron wrote: > Hi all, > > Does anyone have any data to show how ZFS raidz with the on-disk cache > enabled for small, random IOs compares to a raid controller card with > cache in raid 5. > > I'm working on a very competitive RFP, and one thing that could give us > an advantage is the

Re: [zfs-discuss] ZFS configuration for a thumper

2008-02-01 Thread Albert Shih
Le 01/02/2008 à 11:17:14-0800, Marion Hakanson a écrit > [EMAIL PROTECTED] said: > > Depending on needs for space vs. performance, I'd probably pixk eithr 5*9 > > or > > 9*5, with 1 hot spare. > > [EMAIL PROTECTED] said: > > How you can check the speed (I'm totally newbie on Solaris) >