Mark Post:
> Sergey Korzhevsky:
>> I heard some rumor about "Don't use LVM with Shark/ESS because it use
>> RAID5".
>> Is this true?
>
> No, I don't believe this is true. LVM should work just fine with that
> hardware.
Using an ESS system is confusing because the ESS box is making
believe there are actual physical drives hidden somewhere within
it's cabinet. It does for a disk farm what VM does for the CPU.
The actual resources within a Shark may implement a "set of
volumes" using RAID5- but that will be hidden (except for the
slow writes, which the box will just cache anyway) from the
actual mainframe (or whatnot) attached to it. You will probably
want to avoid having the LVM in Linux from implementing it's own
RAID5 array, though.
--
John R. Campbell Speaker to Machines [EMAIL PROTECTED]
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Disclaimer: All opinions expressed above are those of John R. Campbell
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