similar to: 6347421 Trying to set volblocksize on existing volume gives an unexpected error

Hi, I am trying to understand the use of volblocksize in emulated volumes. If I create a volume in pool and I want a database engine to read and write, say 16K blocks. Should I then set volblocksize to 16K ? Regards, Patrik This message posted from opensolaris.org

I posted this to the forums a little while ago but I believe the list was split at the time: Does anyone have any recommendations for changing the ZFS volblocksize when creating zfs volumes to serve as VMFS backing stores? I''ve seen several people recommend that the volblocksize be set to 64k in this situation- but without much explanation. What are the advantages and disadvantages to

Hi all! First off, if this has been discussed, please point me in that direction. I have searched high and low and really can''t find much info on the subject. We have a large-ish (200gb) UFS file system on a Sun Enterprise 250 that is being shared with samba (lots of files, mostly random IO). OS is Solaris 10u3. Disk set is 7x36gb 10k scsi, 4 internal 3 external. For several

Dear all, Background: I have a ZFS volume with the incorrect volume blocksize for the filesystem (NTFS) that it is supporting. This volume contains important data that is proving impossible to copy using Windows XP Xen HVM that "owns" the data. The disparity in volume blocksize (current set to 512bytes!!) is causing significant performance problems. Question : Is there a way to

Author: eschrock Repository: /hg/zfs-crypto/gate Revision: 7ab8044a52af78e3519796a7778d4111a6ed7caf Log message: 6424405 zpool import destroyed_pool can damage existing pool using same devices Files: update: usr/src/uts/common/fs/zfs/spa.c update: usr/src/uts/common/fs/zfs/sys/vdev.h update: usr/src/uts/common/fs/zfs/sys/vdev_impl.h update: usr/src/uts/common/fs/zfs/vdev.c

Hi All, How ZFS volblocksize is related to ZFS record size ? Thanks Manoj Nayak

What does it mean for the reported value of a zvol volsize to be less than the product of used and compressratio? For example, # zfs get -p all home1/home1mm01 NAME PROPERTY VALUE SOURCE home1/home1mm01 type volume - home1/home1mm01 creation 1254440045 - home1/home1mm01 used 14902492672

The time has come to review the current Contributor and Core contributor grants for ZFS. Since all of the ZFS core contributors grants are set to expire on 02-24-2009 we need to renew the members that are still contributing at core contributor levels. We should also add some new members to both Contributor and Core contributor levels. First the current list of Core contributors: Bill

Author: lling Repository: /hg/zfs-crypto/gate Revision: 2de9ffe8718409582bf049abea4af81f06a89482 Log message: 6399899 change the default value of snapdir property to "hidden" Files: update: usr/src/common/zfs/zfs_prop.c

Author: Anthony Scarpino <Anthony.Scarpino at Sun.COM> Repository: /hg/zfs-crypto/gate Latest revision: 04f168232992beb7ebec3b25a69735bb3e2ab678 Total changesets: 1 Log message: zpool create now loads/prompts for key. Use random salt instead of guid. Fix 654 Files: update: usr/src/cmd/zfs/zfs_main.c update: usr/src/cmd/zoneadm/zfs.c update: usr/src/cmd/zpool/zpool_main.c update:

Author: Anthony Scarpino <Anthony.Scarpino at Sun.COM> Repository: /hg/zfs-crypto/zfs-crypto-gate Latest revision: 9a17248d7cc3087d39ca752bff184ae5a7831cf6 Total changesets: 1 Log message: passphrase & keymgr load/unload Files: update: usr/src/cmd/zfs/zfs_main.c update: usr/src/cmd/zpool/zpool_main.c update: usr/src/common/zfs/zfs_prop.c update:

For the curious, the following is a list of ZFS-related bugs and RFEs integrated in build 29: 6343625 ZFS RBAC integration is incomplete 6343938 ::spa -v tried to read NULL vdev 6344502 placeholder bug for the remaining Makefile cleanup work for ZFS 6345206 zpool iostat doesn''t always line up 6345547 assertion failed: tempreserve < arc.c/4 from zfs_rename 6348792 incorrect error

Author: eschrock Repository: /hg/zfs-crypto/gate Revision: e5f70a6fc5010aa205f244a25a9cdb950e0dae89 Log message: 6366222 zdb(1M) needs to use largefile primitives when reading label 6366267 zfs broke non-BUILD64 compilation of libsec Files: update: usr/src/cmd/zdb/zdb.c update: usr/src/lib/libsec/Makefile

Author: eschrock Repository: /hg/zfs-crypto/gate Revision: 975fad4fa05753c23a18254797cce42bb33b4375 Log message: 6433264 crash when adding spare: nvlist_lookup_string(cnv, "path", &path) == 0 6433406 zfs_open() can leak memory on failure 6433408 namespace_reload() can leak memory on allocation failure 6433679 zpool_refresh_stats() has poor error semantics 6433680 changelist_gather()

Author: eschrock Repository: /hg/zfs-crypto/gate Revision: 6dce8c491b72566c24d3925e3cbce4a0937950c7 Log message: 6423046 zfs_ereport_post() forgets terminating NULL for fm_payload_set() Files: update: usr/src/uts/common/fs/zfs/zfs_fm.c

Author: eschrock Repository: /hg/zfs-crypto/gate Revision: 1fa3f00b353d208d82ec61354a04d58884fecace Log message: 6366731 zfs and gcc don''t get along anymore 6367359 ''zpool offline'' fails, cannot offline device: device not in pool Files: update: usr/src/uts/common/fs/zfs/dbuf.c update: usr/src/uts/common/fs/zfs/dnode_sync.c update: usr/src/uts/common/fs/zfs/vdev.c

Author: eschrock Repository: /hg/zfs-crypto/gate Revision: d8d5e7cde43f290970fdbf67a5f27873a4ac7bfc Log message: 6269833 ::prtconf -D 6294890 ::setenv dcmd dumps core if no target specified Contributed by Rich Lowe <richlowe at richlowe.net> Files: update: usr/src/cmd/mdb/common/mdb/mdb_proc.c update: usr/src/cmd/mdb/common/modules/genunix/devinfo.c

Author: eschrock Repository: /hg/zfs-crypto/gate Revision: 772877c84f6d282397b70b9c1aa8fe3107aa21ca Log message: 6343625 ZFS RBAC integration is incomplete Files: update: usr/src/lib/libsecdb/exec_attr.txt

I''ve been seeing read and write performance pathologies with Linux ext3 over iSCSI to zvols, especially with small writes. Does running a journalled filesystem to a zvol turn the block storage into swiss cheese? I am considering serving ext3 journals (and possibly swap too) off a raw, hardware-mirrored device. Before I do (and I''ll write up any results) I''d like to know

I''m not sure if this is the right place for the question or not, but I''ll throw it out there anyways. Does anyone know, if you create your pool(s) with a system running fishworks, can that pool later be imported by a standard solaris system? IE: If for some reason the head running fishworks were to go away, could I attach the JBOD/disks to a system running snv/mainline