Re: [zfs-discuss] Suggested RaidZ configuration...

2010-09-06 Thread Brandon High
On Mon, Sep 6, 2010 at 2:36 PM, Roy Sigurd Karlsbakk wrote: > a 7k2 drive for l2arc? It wouldn't be great, but you could put an SSD in the bay instead. -B -- Brandon High : bh...@freaks.com ___ zfs-discuss mailing list zfs-discuss@opensolaris.org htt

Re: [zfs-discuss] Suggested RaidZ configuration...

2010-09-06 Thread Roy Sigurd Karlsbakk
- Original Message - > On Mon, Sep 6, 2010 at 8:53 AM, hatish wrote: > > Im setting up a server with 20x1TB disks. Initially I had thought to > > setup the disks using 2 RaidZ2 groups of 10 discs. However, I have > > just read the Best Practices guide, and it says your group shouldnt > > h

Re: [zfs-discuss] Suggested RaidZ configuration...

2010-09-06 Thread Brandon High
On Mon, Sep 6, 2010 at 8:53 AM, hatish wrote: > Im setting up a server with 20x1TB disks. Initially I had thought to setup > the disks using 2 RaidZ2 groups of 10 discs. However, I have just read the > Best Practices guide, and it says your group shouldnt have > 9 disks. So Im > thinking a bett

Re: [zfs-discuss] Suggested RaidZ configuration...

2010-09-06 Thread Orvar Korvar
Otherwise you can have 2 discs as hot spare. three 6 disc vdevs. -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Re: [zfs-discuss] Suggested RaidZ configuration...

2010-09-06 Thread Orvar Korvar
Can you add another disk? then you have three 7 disc vdevs. (Always use raidz2.) -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Re: [zfs-discuss] Suggested RaidZ configuration...

2010-09-06 Thread Carsten Aulbert
Hi On Monday 06 September 2010 17:53:44 hatish wrote: > Im setting up a server with 20x1TB disks. Initially I had thought to setup > the disks using 2 RaidZ2 groups of 10 discs. However, I have just read the > Best Practices guide, and it says your group shouldnt have > 9 disks. So > Im thinking a

[zfs-discuss] Suggested RaidZ configuration...

2010-09-06 Thread hatish
Im setting up a server with 20x1TB disks. Initially I had thought to setup the disks using 2 RaidZ2 groups of 10 discs. However, I have just read the Best Practices guide, and it says your group shouldnt have > 9 disks. So Im thinking a better configuration would be 2 x 7disk RaidZ2 + 1 x 6disk

Re: [zfs-discuss] what is zfs doing during a log resilver?

2010-09-06 Thread George Wilson
Arne Jansen wrote: Giovanni Tirloni wrote: On Thu, Sep 2, 2010 at 10:18 AM, Jeff Bacon > wrote: So, when you add a log device to a pool, it initiates a resilver. What is it actually doing, though? Isn't the slog a copy of the in-memory intent lo

Re: [zfs-discuss] [mdb-discuss] mdb -k - I/O usage

2010-09-06 Thread Jason Banham
On 06/09/2010 10:56, Piotr Jasiukajtis wrote: Hi, I am looking for the ideas on how to check if the machine was under high I/O pressure before it panicked (caused manually by an NMI). By I/O I mean disks and ZFS stack. Do you believe ZFS was a key component in the I/O pressure? I've CC'd zfs-