Re: [zfs-discuss] How to know the recordsize of a file
comment below... On Feb 25, 2010, at 5:34 PM, Jesus Cea wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 02/24/2010 11:42 PM, Robert Milkowski wrote: mi...@r600:~# ls -li /bin/bash 1713998 -r-xr-xr-x 1 root bin 799040 2009-10-30 00:41 /bin/bash mi...@r600:~# zdb -v rpool/ROOT/osol-916 1713998 Dataset rpool/ROOT/osol-916 [ZPL], ID 302, cr_txg 6206087, 24.2G, 1053147 objects Object lvl iblk dblk dsize lsize %full type 1713998216K 128K 898K 896K 100.00 ZFS plain file CUTE!. Under Solaris 10U7 (can't upgrade the machine to U8 because incompatibilities between ZFS, Zones and Live Upgrade, but that is another issue), I have this: [r...@stargate-host /]# zdb -v datos/zones/stargate/dataset/correo/buzones 25 Dataset datos/zones/stargate/dataset/correo/buzones [ZPL], ID 163, cr_txg 36887, 2.59G, 13 objects ZIL header: claim_txg 0, claim_seq 0 replay_seq 0, flags 0x0 TX_WRITElen952, txg 1885840, seq 414431 TX_WRITElen 1680, txg 1885840, seq 414432 TX_WRITElen 2008, txg 1885840, seq 414433 TX_WRITElen 1400, txg 1885840, seq 414434 TX_WRITElen 1296, txg 1885840, seq 414435 TX_WRITElen 3080, txg 1885840, seq 414436 TX_WRITElen888, txg 1885840, seq 414437 TX_WRITElen 7408, txg 1885840, seq 414438 TX_WRITElen 9424, txg 1885840, seq 414439 TX_WRITElen 7352, txg 1885840, seq 414440 TX_WRITElen 13104, txg 1885840, seq 414441 Total 11 TX_WRITE11 Object lvl iblk dblk lsize asize type 25416K16K 2.91G 2.52G ZFS plain file The reply format is a little bit different. Could you explain the meaning of each field?. lvl, iblk, etc. ZFS uses a transactional object model, so at this level the discussion is about objects, where file contents are a type of object. In source terms, this is a dump of the DMU object information (dmu_object_info struct) Object = object number lvl = indirection level iblk = metadata block size dblk = data block size (max, as used) lsize = logical size (max block offset) asize = physical size (data + metadata) type = type of the object (dnode, plain file, directory contents, object array, etc.) -- richard ZFS storage and performance consulting at http://www.RichardElling.com ZFS training on deduplication, NexentaStor, and NAS performance http://nexenta-atlanta.eventbrite.com (March 16-18, 2010) ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] How to know the recordsize of a file
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 02/24/2010 11:42 PM, Robert Milkowski wrote: mi...@r600:~# ls -li /bin/bash 1713998 -r-xr-xr-x 1 root bin 799040 2009-10-30 00:41 /bin/bash mi...@r600:~# zdb -v rpool/ROOT/osol-916 1713998 Dataset rpool/ROOT/osol-916 [ZPL], ID 302, cr_txg 6206087, 24.2G, 1053147 objects Object lvl iblk dblk dsize lsize %full type 1713998216K 128K 898K 896K 100.00 ZFS plain file CUTE!. Under Solaris 10U7 (can't upgrade the machine to U8 because incompatibilities between ZFS, Zones and Live Upgrade, but that is another issue), I have this: [r...@stargate-host /]# zdb -v datos/zones/stargate/dataset/correo/buzones 25 Dataset datos/zones/stargate/dataset/correo/buzones [ZPL], ID 163, cr_txg 36887, 2.59G, 13 objects ZIL header: claim_txg 0, claim_seq 0 replay_seq 0, flags 0x0 TX_WRITElen952, txg 1885840, seq 414431 TX_WRITElen 1680, txg 1885840, seq 414432 TX_WRITElen 2008, txg 1885840, seq 414433 TX_WRITElen 1400, txg 1885840, seq 414434 TX_WRITElen 1296, txg 1885840, seq 414435 TX_WRITElen 3080, txg 1885840, seq 414436 TX_WRITElen888, txg 1885840, seq 414437 TX_WRITElen 7408, txg 1885840, seq 414438 TX_WRITElen 9424, txg 1885840, seq 414439 TX_WRITElen 7352, txg 1885840, seq 414440 TX_WRITElen 13104, txg 1885840, seq 414441 Total 11 TX_WRITE11 Object lvl iblk dblk lsize asize type 25416K16K 2.91G 2.52G ZFS plain file The reply format is a little bit different. Could you explain the meaning of each field?. lvl, iblk, etc. Thanks a lot!. - -- Jesus Cea Avion _/_/ _/_/_/_/_/_/ j...@jcea.es - http://www.jcea.es/ _/_/_/_/ _/_/_/_/ _/_/ jabber / xmpp:j...@jabber.org _/_/_/_/ _/_/_/_/_/ . _/_/ _/_/_/_/ _/_/ _/_/ Things are not so easy _/_/ _/_/_/_/ _/_/_/_/ _/_/ My name is Dump, Core Dump _/_/_/_/_/_/ _/_/ _/_/ El amor es poner tu felicidad en la felicidad de otro - Leibniz -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQCVAwUBS4clI5lgi5GaxT1NAQII/wP8C8E+25nQg8ZhbccZ72zO+xmemLwGyQpu 1mKJjjWI1PT9cDB9cUzHsFmjxA79gF5pfM0NKz7VtrnGBXcHLqamxHmqrm2srHO8 wObDFh7WnC96tRYWDmc/5knN6nkiXwnUKQRUcLT3LCHL/pY2fTP9bQEQOKXu5cOl f5Dkmu/df2o= =Rv1q -END PGP SIGNATURE- ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] How to know the recordsize of a file
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I would like to know the blocksize of a particular file. I know the blocksize for a particular file is decided at creation time, in fuction of the write size done and the recordsize property of the dataset. How can I access that information?. Some zdb magic?. - -- Jesus Cea Avion _/_/ _/_/_/_/_/_/ j...@jcea.es - http://www.jcea.es/ _/_/_/_/ _/_/_/_/ _/_/ jabber / xmpp:j...@jabber.org _/_/_/_/ _/_/_/_/_/ . _/_/ _/_/_/_/ _/_/ _/_/ Things are not so easy _/_/ _/_/_/_/ _/_/_/_/ _/_/ My name is Dump, Core Dump _/_/_/_/_/_/ _/_/ _/_/ El amor es poner tu felicidad en la felicidad de otro - Leibniz -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQCVAwUBS4WbjZlgi5GaxT1NAQI7lgQAp1VYhsX3mR5sBOkdreUdYv2ApRAIFCfD 6yJxE2gVKW91OciHnS4Gtk1fs97achOu+6ab2eHikziZEy7hoOzGgKzqchpZq6jA fz3KKCS1wmixbbak7SDkzIREqqfi3LvD9ubFIz+hEFPv4DVd4whfCSGDGd87QBIA x32q+Wj/680= =UeU8 -END PGP SIGNATURE- ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] How to know the recordsize of a file
On 24/02/2010 21:35, Jesus Cea wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I would like to know the blocksize of a particular file. I know the blocksize for a particular file is decided at creation time, in fuction of the write size done and the recordsize property of the dataset. How can I access that information?. Some zdb magic?. pre mi...@r600:~# ls -li /bin/bash 1713998 -r-xr-xr-x 1 root bin 799040 2009-10-30 00:41 /bin/bash mi...@r600:~# zdb -v rpool/ROOT/osol-916 1713998 Dataset rpool/ROOT/osol-916 [ZPL], ID 302, cr_txg 6206087, 24.2G, 1053147 objects Object lvl iblk dblk dsize lsize %full type 1713998216K 128K 898K 896K 100.00 ZFS plain file mi...@r600:~# /pre -- Robert Milkowski http://milek.blogspot.com ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
