As to whether it makes sense (as opposed to two distinct physical devices), you would have read cache hits competing with log writes for bandwidth. I doubt both will be pleased :-)
On 12/12/09, Robert Milkowski <mi...@task.gda.pl> wrote: > Jens Elkner wrote: >> Hi, >> >> just got a quote from our campus reseller, that readzilla and logzilla >> are not available for the X4540 - hmm strange.... Anyway, wondering >> whether it is possible/supported/would make sense to use a Sun Flash >> Accelerator F20 PCIe Card in a X4540 instead of 2.5" SSDs? >> >> If so, is it possible to "partition" the F20, e.g. into 36 GB "logzilla", >> 60GB "readzilla" (also interesting for other Xnnnn servers)? >> >> > IIRC the card presents 4x LUNs so you could use each of them for > different purpose. > You could also use different slices. >> me or not. Is this correct? >> >> > > It still does. The capacitor is not for flushing data to disks drives! > The card has a small amount of DRAM memory on it which is being flushed > to FLASH. Capacitor is to make sure it actually happens if the power is > lost. > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss > -- Regards, Andrey _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
