On Mon, Oct 06, 2008 at 10:47:04AM -0400, Moore, Joe wrote: > > I wonder if an AVS-replicated storage device on the backends would be > appropriate? > > write -> ZFS-mirrored slog -> ramdisk -AVS-> physical disk > \ > +-iscsi-> ramdisk -AVS-> physical disk > > You'd get the continuous replication of the ramdisk to physical drive (and > perhaps automagic recovery on reboot) but not pay the syncronous write to > remote physical disk penalty
Hmmm, AVS *might* just be the ticket here. Will have to look at that. > A .5-ms RTT on an ethernet link to the iSCSI disk may be faster than a 9-ms > latency on physical media. Or, if you're looking into what I'm thinking with 4Gb/8Gb FC, it gets even better. > There was a time when it was better to place workstations' swap files on the > far side of a 100Mbps ethernet link rather than using the local spinning > rust. Ah, the good old days... I remember those days. My SPARCstation LX ran that way. Not due to speed, however, due to lack of disk space in the LX. ;) -brian -- "Coding in C is like sending a 3 year old to do groceries. You gotta tell them exactly what you want or you'll end up with a cupboard full of pop tarts and pancake mix." -- IRC User (http://www.bash.org/?841435) _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
