Re: [zfs-discuss] zfs with SAN / cluster problem
Note that it is expected that the cluster will force import, so in a i was talking about creation, not import. You must be running an older version of Solaris. The s10u4 + sc 3.2 Anyway, bug has now been accepted. With cluster and SAN, zfs does _yet_ not behave normally :) Thanks for your answer. This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] zfs with SAN / cluster problem
When moving pools, we use of course export/import or sczbt suncluster stuff. Nevertheless, we dont want to use zfs as global FS with concurrent access, just use it like svm or vxvm to declare volumes usable by cluster's nodes (and used by only once at a time). so, it seems to me a bit problematic that once a LUN has been used by a storage resource declared on a node, i still can zpool it on the other node without warning. At least, VxVm asks for a -f flag. thanks for your answer, Tim. This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] zfs with SAN / cluster problem
Hi I got a san disk visible on two nodes (global or zone). On the first node, i can create a pool using zpool create x1 sandisk. If i try to reuse this disk on the first node, i got a vdev in use warning. If i try to create a pool on the second node using the same disk, zpool create x2 sandisk, it works fine, without warning, before leading to obvious problems. I am using sol10 u4 . did anyone encounter the same problem on opensolaris or s10 ? What could i be missing ? this happens whatever the NOINUSE_CHECK variable is set to. thanks a lot christophe This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS and SAN
Hi Robert, thanks for the answer. You are not the only one. It's somewhere on ZFS developers list... yes, i checked this on the whole list. so, lets wait for the feature. Actually it should complain and using -f (force) on the active node, yes. but if we want to reuse the luns on the other node, there is no warning. CR - what could be some interesting tools to test IO Check for filebench (included with recent SXCE). i ll try it. thanks for your answer christophe This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] ZFS and SAN
Hi all we consider using ZFS for various storages (DB, etc). Most features are great, especially the ease of use. Nevertheless, a few questions : - we are using SAN disks, so most JBOD recommandations dont apply, but I did not find many experiences of zpool of a few terabytes on Luns... anybody ? - we cannot remove a device from a pool. so no way of correcting the attachment of a 200 GB LUN on a 6 TB pool on which oracle runs ... am i the only one worrying ? - on a sun cluster, luns are seen on both nodes. Can we prevent mistakes like creating a pool on already assigned luns ? for example, veritas wants a force flag. With ZFS i can do : node1: zpool create X add lun1 lun2 node2 : zpool create Y add lun1 lun2 and then, results are unexpected, but pool X will never switch again ;-) resource and zone are dead. - what could be some interesting tools to test IO perfs ? did someone run iozone and publish baseline, modifications and according results ? well, anyway, thanks to zfs team :D This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
