How are you presenting the flashcache'd device to Quadstor? Remember flashcache gives you a DM (/dev/mapper/..) device, to use this with Quadstor you either have to either build an LVM on top or create a loopback SCSI device with LIO.
I've used this configuration myself before but I'm moving my systems off it - I have had issues with the flashcache writeback not always flushing out properly - so I am migrating to LSI CacheCade - its not as flexible but safer. On Monday, September 19, 2016 at 1:49:17 PM UTC+10, Zac Durham wrote: > > There's a few topics out there on this subject but I can't get my head > around any of them.... > > I have 3 x 2TB in software (mdadm) RAID5 (yeah, yeah I know) and a spare > 120G SSD to use as cache. Currently I use flashcache to back the entire md > device but do not realize any benefit in doing so (nor do I see any > activity on the cache device when performing I/O against the array). > > Where is my approach flawed? I've also tried fronting the qs vdisks > themselves with the SSD device to no avail either. > > Any help would be appreciated. > > -Z > > > -- You received this message because you are subscribed to the Google Groups "QUADStor Storage Virtualization" group. To unsubscribe from this group and stop receiving emails from it, send an email to quadstor-virt+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
