-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 hi,
i have a system connected to a StorageTek 2530 SAS array (12 disks), on which i want to run ZFS. in the past, when using ZFS on an external array, i would simply create one LUN on the array and create the ZFS pool on this; but for various well-documented reasons (e.g. checksums, disk failure) this is usually frowned on. so, my question is: what is the best way to use this storage with ZFS? is it feasible to export 12 LUNs from the array, one for each disk, or will this impact performance? (the array has no JBOD mode, and anyway i want to keep using the array's nvram cache.) should i create, say, 4 RAID-0 LUNs (of 3 disks each) and use RAID-Z for redundancy in the host? this seems like a reasonable compromise, as it allows ZFS to recover from errors without needing a JBOD-style array configuration. on the other hand, it would prevent ZFS from identifying exactly which disk has failed. i would like to use the entire capacity of the storage, so creating two RAID10 volumes and mirroring them in ZFS is not acceptable. the array<>host connection is using MPxIO, in case this makes a difference. thanks, river. -----BEGIN PGP SIGNATURE----- iD8DBQFJe1QLIXd7fCuc5vIRAloJAJ4lekMNbAGDS5zprtjfcYGUtr6vfQCffwOM dS3oZ6qF2taKZH5twyY3qYE= =uWdg -----END PGP SIGNATURE----- _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
