Hello and good day, I will have two OpenSolaris snv_134 storage servers both connected to a SAS chassis with SAS disks used to store zpool data. One storage server will be the active storage server and the other will be the passive fail over storage server. Both servers will be able to access the same disks in the SAS chassis. I am planning on having unique, non-shared, SSD cache directly connected to each storage node to allow for better performance when utilizing the cache SSDs.
Would having unique, non-shared, SSD cache directly connected to each storage node's motherboard actually allow for better performance when utilizing the cache SSDs? Or would having the SSD cache devices be shared going through a shared controller yield just the same performance? If having unique, non-shared, SSD cache directly connected to each storage node's motherboard actually yields better performance how would a zpool import of a zpool utilizing the unique SSD cache devices work on the passive, fail over storage node when a fail over happened? Would OpenSolaris/ZFS use these directly connected cache devices automatically or would we have to add these cache devices into the zpool? If there was data on the cache devices on the active storage node and say the power went out and fail over occurred would the data on the cache devices be lost during a zpool import on the fail over node? Also, if you would like any other details about this storage environment to better provide myself and the list with insight to these questions please just ask! -- Thank you, Preston Connors Atlantic.Net _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
