Hi Now that Solaris 10 06/06 is finally downloadable I have some questions about ZFS.
-We have a big storage sytem supporting RAID5 and RAID1. At the moment, we only use RAID5 (for non-solaris systems as well). We are thinking about using ZFS on those LUNs instead of UFS. As ZFS on Hardware RAID5 seems like overkill, an option would be to use RAID1 with RAID-Z. Then again, this is a waist of space, as it needs more disks, due to the mirroring. Later on, we might be using asynchronous replication to another storage system using SAN, even more waste of space. This looks somehow like storage virtualization as of today just doesn't work nicely together. What we need, would be the feature to use JBODs. -Does ZFS in the current version support LUN extension? With UFS, we have to zero the VTOC, and then adjust the new disk geometry. How does it look like with ZFS? -I've read the threads about zfs and databases. Still I'm not 100% convenienced about read performance. Doesn't the fragmentation of the large database files (because of the concept of COW) impact read-performance? -Does anybody have any experience in database cloning using the ZFS mechanism? What factors influence the performance, when running the cloned database in parallel? -I really like the idea to keep all needed databasefiles together, to allow fast and consistent cloning. Thanks Mika # mv Disclaimer.txt /dev/null ------------------------------------------------------------------------- This message is intended for the addressee only and may contain confidential or privileged information. If you are not the intended receiver, any disclosure, copying to any person or any action taken or omitted to be taken in reliance on this e-mail, is prohibited and may be un- lawful. You must therefore delete this e-mail. Internet communications may not be secure or error-free and may contain viruses. They may be subject to possible data corruption, accidental or on purpose. This e-mail is not and should not be construed as an offer or the solicitation of an offer to purchase or subscribe or sell or redeem any investments. ------------------------------------------------------------------------- _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
