On Tue, Sep 14, 2010 at 06:59:07AM -0700, Wolfraider wrote: > We are looking into the possibility of adding a dedicated ZIL and/or > L2ARC devices to our pool. We are looking into getting 4 – 32GB > Intel X25-E SSD drives. Would this be a good solution to slow write > speeds? We are currently sharing out different slices of the pool to > windows servers using comstar and fibrechannel. We are currently > getting around 300MB/sec performance with 70-100% disk busy. > > Opensolaris snv_134 > Dual 3.2GHz quadcores with hyperthreading > 16GB ram > Pool_1 – 18 raidz2 groups with 5 drives a piece and 2 hot spares > Disks are around 30% full > No dedup
It'll probably help. I'd get two X-25E's for ZIL (and mirror them) and one or two of Intel's lower end X-25M for L2ARC. There are some SSD devices out there with a super-capacitor and significantly higher IOPs ratings than the X-25E that might be a better choice for a ZIL device, but the X-25E is a solid drive and we have many of them deployed as ZIL devices here. Ray _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
