Re: [zfs-discuss] improve meta data performance

2010-02-19 Thread Kjetil Torgrim Homme
Chris Banal writes: > We have a SunFire X4500 running Solaris 10U5 which does about 5-8k nfs > ops of which about 90% are meta data. In hind sight it would have been > significantly better  to use a mirrored configuration but we opted for > 4 x (9+2) raidz2 at the time. We can not take the downti

Re: [zfs-discuss] improve meta data performance

2010-02-18 Thread Andrey Kuzmin
Try an inexpensive MLC SSD (Intel/Micron) for L2ARC. Won't help metadat updates, but should boost reads. Regards, Andrey On Thu, Feb 18, 2010 at 11:23 PM, Chris Banal wrote: > We have a SunFire X4500 running Solaris 10U5 which does about 5-8k nfs ops > of which about 90% are meta data. In hin

Re: [zfs-discuss] improve meta data performance

2010-02-18 Thread Tomas Ögren
On 18 February, 2010 - Chris Banal sent me these 1,8K bytes: > We have a SunFire X4500 running Solaris 10U5 which does about 5-8k nfs ops > of which about 90% are meta data. In hind sight it would have been > significantly better to use a mirrored configuration but we opted for 4 x > (9+2) raidz2

[zfs-discuss] improve meta data performance

2010-02-18 Thread Chris Banal
We have a SunFire X4500 running Solaris 10U5 which does about 5-8k nfs ops of which about 90% are meta data. In hind sight it would have been significantly better to use a mirrored configuration but we opted for 4 x (9+2) raidz2 at the time. We can not take the downtime necessary to change the zpo