Re: [zfs-discuss] ZFS QoS and priorities

2012-12-01 Thread Nikola M.
On 12/ 2/12 05:19 AM, Richard Elling wrote: On Dec 1, 2012, at 6:54 PM, "Nikola M." wrote: On 12/ 2/12 03:24 AM, Nikola M. wrote: It is using Solaris Zones and throttling their disk usage on that level, so you separate workload processes on separate zones. Or even put KVM machines under the z

[zfs-discuss] Digging in the bowels of ZFS

2012-12-01 Thread Jim Klimov
My problematic home-NAS (that old list readers might still remember about from a year-two ago) is back online, thanks to a friend who fixed and turned it on. I'm going to try some more research on that failure I had with the 6-disk raidz2 set, when it suddenly couldn't read and recover some blocks

Re: [zfs-discuss] ZFS QoS and priorities

2012-12-01 Thread Richard Elling
On Dec 1, 2012, at 6:54 PM, "Nikola M." wrote: > On 12/ 2/12 03:24 AM, Nikola M. wrote: >> It is using Solaris Zones and throttling their disk usage on that level, >> so you separate workload processes on separate zones. >> Or even put KVM machines under the zones (Joyent and OI support >> Joyen

Re: [zfs-discuss] ZFS QoS and priorities

2012-12-01 Thread Nikola M.
On 12/ 2/12 03:24 AM, Nikola M. wrote: It is using Solaris Zones and throttling their disk usage on that level, so you separate workload processes on separate zones. Or even put KVM machines under the zones (Joyent and OI support Joyent-written KVM/Intel implementation in Illumos) for the same

Re: [zfs-discuss] ZFS QoS and priorities

2012-12-01 Thread Nikola M.
On 11/29/12 10:56 AM, Jim Klimov wrote: For example, I might want to have corporate webshop-related databases and appservers to be the fastest storage citizens, then some corporate CRM and email, then various lower priority zones and VMs, and at the bottom of the list - backups. AFAIK, now such

Re: [zfs-discuss] 6Tb Database with ZFS

2012-12-01 Thread Fung Zheng
Hello, Thanks for you reply, i forgot to mention that the doc "Configuring ZFS for an Oracle Database" was followed, this include primarycache, logbias, recordsize properties, all the best practices was followed and my only doubt is the arc_max parameter, i want to know if 24Gb is good enough for

Re: [zfs-discuss] 6Tb Database with ZFS

2012-12-01 Thread Jim Klimov
On 2012-12-01 15:05, Fung Zheng wrote: Hello, Im about to migrate a 6Tb database from Veritas Volume Manager to ZFS, I want to set arc_max parameter so ZFS cant use all my system's memory, but i dont know how much i should set, do you think 24Gb will be enough for a 6Tb database? obviously the m

[zfs-discuss] 6Tb Database with ZFS

2012-12-01 Thread Fung Zheng
Hello, Im about to migrate a 6Tb database from Veritas Volume Manager to ZFS, I want to set arc_max parameter so ZFS cant use all my system's memory, but i dont know how much i should set, do you think 24Gb will be enough for a 6Tb database? obviously the more the better but i cant set too much me

Re: [zfs-discuss] Remove disk

2012-12-01 Thread craig
If you are attaching a new enclosure, make a new zpool in that enclosure with a temporary name and 'zfs send' snapshots from the old pool to the new pool, reading in with 'zfs recv'. Craig Cory Senior Instructor ExitCertified.com On Dec 1, 2012, at 3:20 AM, Albert Shih wrote: > Le 30/11/201

Re: [zfs-discuss] Remove disk

2012-12-01 Thread Jan Owoc
Hi Albert, On Sat, Dec 1, 2012 at 4:20 AM, Albert Shih wrote: > Le 30/11/2012 ? 15:52:09+0100, Tomas Forsman a écrit >> On 30 November, 2012 - Albert Shih sent me these 0,8K bytes: >> > I would like to knwon if with ZFS it's possible to do something like that : >> > >> > http://tldp.org/HOW

Re: [zfs-discuss] Remove disk

2012-12-01 Thread Albert Shih
Le 30/11/2012 ? 15:52:09+0100, Tomas Forsman a écrit > On 30 November, 2012 - Albert Shih sent me these 0,8K bytes: > > > Hi all, > > > > I would like to knwon if with ZFS it's possible to do something like that : > > > > http://tldp.org/HOWTO/LVM-HOWTO/removeadisk.html > > > > meaning :