>That's the dilemma, the array provides nice features like RAID1 and
>RAID5, but those are of no real use when using ZFS. 


RAID5 is not a "nice" feature when it breaks.

A RAID controller cannot guarantee that all bits of a RAID5 stripe
are written when power fails; then you have data corruption and no
one can tell you what data was corrupted.  ZFS RAIDZ can.

>The advantages  to use ZFS on such array are e.g. the sometimes huge
>write cache available, use of consolidated storage and in SAN
>configurations, cloning and sharing storage between hosts.

Are huge write caches really a advantage?  Or are you taking about huge
write caches with non-volatile storage?

>The price comes of course in additional administrative overhead (lots
>of microcode updates, more components that can fail in between, etc).
>
>Also, in bigger companies there usually is a team of storage
>specialist, that mostly do not know about the applications running on
>top of it, or do not care... (like: "here you have your bunch of
>gigabytes...")

True enough ....

Casper

_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Reply via email to