On Thu, Jul 2, 2009 at 8:22 PM, Roman Naumenko<[email protected]> wrote: > Hi, > > Just wonder if there is something special that makes 7120 faster than the > server you can assemble by yourself
SSDs for read caching and intent log, write-optimized SLC for the latter and cheaper MLC for the former. You may give a shot to Intel ones, X25E for intent log and M-series for the read-side caching. Regards, Andrey > from common components. I have an ultimate task to make a fast zfs :) > > And what I'm thinking about is that there is only thing you can't get from > nearest server hardware supplier: SDD > > I see that STEC SSD ZEUSiops are used in 7120. Other staff is pretty common: > like 7200 SATA disks, controller probably can't increase speed much since > it's a standard SATA 300MB/s > > Processor and memory are usual, I have for example 2G E5405 quad-core > processors and 16Gb RAM and 8 1.5T disks on Adapted 5805. Version is 111b > Well, the performance of such system is so-so. 30Mb/s nfs, 50Mb/s iscsi. I'm > looking for a way to improve it radically. I have in mind FC, SAS drives and > SSD, going to try all of them. > > I'd like to start with SSD but STEC web-site doesn't show prices. Probably > they are too high. Are there any other SSD supplier to try? IBM has 500$ 18G > drives www-03.ibm.com/systems/storage/disk/ssd/index.html > but probably they don't optimized for writing. > IBM says that they can make write rate : 47MB/s and random Read (4K blocks): > >5000 IOPS > > I also see that SUN itself sell 32 GB SATA SSD, 1200$ > I see the following info in the catalog: > 150Mb/s writing, 5000-7000 random write IOPS and 300 μs max command latency. > Is this one going to improve zfs performance? > > Thanks, > Roman > -- > This message posted from opensolaris.org > _______________________________________________ > storage-discuss mailing list > [email protected] > http://mail.opensolaris.org/mailman/listinfo/storage-discuss > _______________________________________________ storage-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/storage-discuss
