Torrey McMahon writes: > Toby Thain wrote: > > > > On 25-May-07, at 1:22 AM, Torrey McMahon wrote: > > > >> Toby Thain wrote: > >>> > >>> On 22-May-07, at 11:01 AM, Louwtjie Burger wrote: > >>> > >>>> On 5/22/07, Pål Baltzersen <[EMAIL PROTECTED]> wrote: > >>>>> What if your HW-RAID-controller dies? in say 2 years or more.. > >>>>> What will read your disks as a configured RAID? Do you know how to > >>>>> (re)configure the >controller or restore the config without > >>>>> destroying your data? Do you know for sure that a >spare-part and > >>>>> firmware will be identical, or at least compatible? How good is > >>>>> your service >subscription? Maybe only scrapyards and museums will > >>>>> have what you had. =o > >>>> > >>>> Be careful when talking about RAID controllers in general. They are > >>>> not created equal! ... > >>>> Hardware raid controllers have done the job for many years ... > >>> > >>> Not quite the same job as ZFS, which offers integrity guarantees > >>> that RAID subsystems cannot. > >> > >> Depend on the guarantees. Some RAID systems have built in block > >> checksumming. > >> > > > > Which still isn't the same. Sigh. > > Yep.....you get what you pay for. Funny how ZFS is free to purchase > isn't it? >
With RAID level block checksumming, if the data gets corrupted on it's way _to_ the array, that data is lost. With ZFS and RAID-Z or Mirroring, you will recover the data. -r > _______________________________________________ > 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
