Also the "unmirrored memory" for the rest of the system has ECC and ChipKill, which provides at least SOME protection against random bit-flips.
-- Question: It appears that CF and friends would make a descent live-boot (but don't run on me like I'm a disk) type of boot-media due to the limited write/re-write limitations of flash-media. (at least the non-exotic type of flash-media) Would something like future zfs-booting on a pair of CF-devices reduce/lift that limitation? (does the COW nature of ZFS automatically spread WRITES across the entire CF device?) [[ is tmp-fs/swap going to remain a problem till zfs-swap adds some COW leveling to the swap-area? ]] Thanks, -- MikeE -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Carson Gaspar Sent: Tuesday, May 29, 2007 8:05 PM To: Richard Elling Cc: zfs-discuss@opensolaris.org; Anton B. Rang Subject: Re: [zfs-discuss] Re: ZFS - Use h/w raid or not?Thoughts. Considerations. Richard Elling wrote: > But I am curious as to why you believe 2x CF are necessary? > I presume this is so that you can mirror. But the remaining memory > in such systems is not mirrored. Comments and experiences are welcome. CF == bit-rot-prone disk, not RAM. You need to mirror it for all the same reasons you need to mirror hard disks, and then some. -- Carson _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
