Re: [zfs-discuss] General recommendations on raidz groups of different sizes

2007-07-19 Thread David W. Smith
Matt, Thank you for your reply. I like to keep the raidz groups with the same number of disks but it is not always that easily to have the numbers work out way. David On Thu, 2007-07-19 at 14:49 -0700, Matthew Ahrens wrote: > David Smith wrote: > > What are your thoughts or recommendations on

Re: [zfs-discuss] ZFS raid is very slow???

2007-07-19 Thread Joel Buckley
Orvar Korvar wrote: > I am using 4 SATA II drives, with this card (see the comments) which > got detected by Solaris automatically: > http://napobo3.blogspot.com/2006/04/sata2-under-b36.html On there you posted: > However, I get very slow read/write perfomance. I have 4 samsung > 500GB each shoul

Re: [zfs-discuss] mounting a zfs in ufs namespace

2007-07-19 Thread Sean McGrath - Sun Microsystems Ireland
David McDaniel stated: < An an application currently stores date in /opt/stuff. The application cant be changed to expect its data in another path. But it could benefit from some ZFS capabilities. < So, ideally I could create a pool and zfs, and then mount that at /opt/stuff. I know I could pr

Re: [zfs-discuss] General recommendations on raidz groups of different sizes

2007-07-19 Thread Matthew Ahrens
David Smith wrote: > What are your thoughts or recommendations on having a zpool made up of > raidz groups of different sizes? Are there going to be performance issues? It should be fine. Under some circumstances the performance could be similar to a pool with all raidz groups of the smallest s

Re: [zfs-discuss] ZFS raid is very slow???

2007-07-19 Thread Orvar Korvar
I am using 4 SATA II drives, with this card (see the comments) which got detected by Solaris automatically: http://napobo3.blogspot.com/2006/04/sata2-under-b36.html I understand that my 32bit CPU is the limiting factor? But that seems a bit strange I think. A [EMAIL PROTECTED] should be able to

[zfs-discuss] mounting a zfs in ufs namespace

2007-07-19 Thread David McDaniel
An an application currently stores date in /opt/stuff. The application cant be changed to expect its data in another path. But it could benefit from some ZFS capabilities. So, ideally I could create a pool and zfs, and then mount that at /opt/stuff. I know I could presumably make /opt/stuff a

Re: [zfs-discuss] General recommendations on raidz groups of different sizes

2007-07-19 Thread Richard Elling
After a cup of French coffee, I feel strong enough to recommend :-) David Smith wrote: > What are your thoughts or recommendations on having a zpool made up of > raidz groups of different sizes? Are there going to be performance issues? It is more complicated and, in general, more complicated is

Re: [zfs-discuss] more love for databases

2007-07-19 Thread Alderman, Sean
This is good news, thank you for the blog! If I may ask a couple of questions to the community on the topic of OLTP workload and ZFS... 1. When evaluating ZFS for our Oracle systems (heavy 8K uncached workload), our DBAs used the ZFS vs. VxFS whitepaper http://www.sun.com/software/whitepapers/so

[zfs-discuss] more love for databases

2007-07-19 Thread eric kustarz
Here's some info on the changes we've made to the vdev cache (in part) to help database performance: http://blogs.sun.com/erickustarz/entry/vdev_cache_improvements_to_help enjoy your properly inflated I/O, eric ___ zfs-discuss mailing list zfs-discuss

Re: [zfs-discuss] Helpful Newbie ZFS Build Tip

2007-07-19 Thread Darren J Moffat
Rob Nelson wrote: > OK - here's some info for those of you just starting out with zfs from the > coding/building level. I struggled for many days walking down the path of > install specific snv_xx release -> build code of snv_xx release with nightly > -> install kernel only with cap eye Install

Re: [zfs-discuss] ZFS boot process - where from ZFS knows which pools/datasets should be mounted after OS reboot?

2007-07-19 Thread Robert Milkowski
Hello Systems, Thursday, July 19, 2007, 9:02:06 AM, you wrote: RPSASPSP> Hi, RPSASPSP> I have a question concerning booting Solaris (SPARC/X64) with some ZFS RPSASPSP> storage pools/datasets created and mounted. RPSASPSP> Where from Solaris/ZFS knows which storage pools/datasets should be RPSA

Re: [zfs-discuss] separate intent log blog

2007-07-19 Thread Robert Milkowski
Hello Eric, Wednesday, July 18, 2007, 9:37:21 PM, you wrote: ES> On Wed, Jul 18, 2007 at 03:06:07PM -0500, Albert Chin wrote: >> On Wed, Jul 18, 2007 at 01:00:22PM -0700, Eric Schrock wrote: >> > You can find these at: >> > >> > http://www.umem.com/Umem_NVRAM_Cards.html >> > >> > And the one Ne

[zfs-discuss] ZFS boot process - where from ZFS knows which pools/datasets should be mounted after OS reboot?

2007-07-19 Thread Robert Prus - Solution Architect, Systems Practice - Sun Poland
Hi, I have a question concerning booting Solaris (SPARC/X64) with some ZFS storage pools/datasets created and mounted. Where from Solaris/ZFS knows which storage pools/datasets should be mounted after reboot??? ZFS is not using at all /etc/vfstab configuration file (I exclude here case where