[zfs-discuss] Re: Are there general guide to put ZFS on steroids?

Iulian guletz2002 at gmail.com
Wed Oct 30 09:51:21 EDT 2013


Ok. Targets user scenario are different for backuppc and for rsnapshot. But
in some concrete cases it worth to run both! If you or someone want I can
detail.


2013/10/30 Arman Khalatyan <arm2arm at gmail.com>

> Thanks all for suggestions.Definitely I will go for rsnapshot.
>
> I just tested on same data (480GB-400k files, about 200MB/hour changes):
> backuppc,rdiff-backup and rsnapshot
> rsnapshot:   1min    (keep 7 hourly, 6 daily , 2weekly, 3 mountly )
> rdiff-backup: 4min    (keep 14 days hourly backup)
> backupPC:  20 min  (48 rollback history)
>
> It looks that lookup for backuppc is slower than on others.but for the
> moment it has much more hard-links than others.
>
>
> I did tests on the system with 16 disks in mirror mode:
> dual 8core AMD CPU with 32GB RAM
> zpool status:
> 16 SATA hitachi enterprise disks (i am using now different jbod box with
> 16 slots SAS/SATA Backplane connected to ARECA 1680 exported as jbod)
> zpool status
>   pool: hitachi
>  state: ONLINE
>   scan: none requested
> config:
>
>         NAME        STATE     READ WRITE CKSUM
>         hitachi     ONLINE       0     0     0
>
>           mirror-0  ONLINE       0     0     0
>              sdb     ONLINE       0     0     0
>             sdc     ONLINE       0     0     0
>           mirror-1  ONLINE       0     0     0
>             sdd     ONLINE       0     0     0
>             sde     ONLINE       0     0     0
>           mirror-2  ONLINE       0     0     0
>             sdf     ONLINE       0     0     0
>             sdg     ONLINE       0     0     0
>           mirror-3  ONLINE       0     0     0
>             sdh     ONLINE       0     0     0
>             sdi     ONLINE       0     0     0
>           mirror-4  ONLINE       0     0     0
>             sdj     ONLINE       0     0     0
>             sdk     ONLINE       0     0     0
>           mirror-5  ONLINE       0     0     0
>             sdl     ONLINE       0     0     0
>             sdm     ONLINE       0     0     0
>           mirror-6  ONLINE       0     0     0
>             sdn     ONLINE       0     0     0
>             sdo     ONLINE       0     0     0
>           mirror-7  ONLINE       0     0     0
>             sdp     ONLINE       0     0     0
>             sdq     ONLINE       0     0     0
>
> errors: No known data errors
>  zfs get all hitachi/BACKUP
> NAME            PROPERTY              VALUE                  SOURCE
> hitachi/BACKUP  type                  filesystem             -
> hitachi/BACKUP  creation              Wed Oct 16 16:50 2013  -
> hitachi/BACKUP  used                  156K                   -
> hitachi/BACKUP  available             13.5T                  -
> hitachi/BACKUP  referenced            156K                   -
> hitachi/BACKUP  compressratio         1.00x                  -
> hitachi/BACKUP  mounted               yes                    -
> hitachi/BACKUP  quota                 none                   default
> hitachi/BACKUP  reservation           none                   default
> hitachi/BACKUP  recordsize            128K                   default
> hitachi/BACKUP  mountpoint            /hitachi/BACKUP        default
> hitachi/BACKUP  sharenfs              off                    default
> hitachi/BACKUP  checksum              on                     default
> hitachi/BACKUP  compression           off                    default
> hitachi/BACKUP  atime                 on                     default
> hitachi/BACKUP  devices               on                     default
> hitachi/BACKUP  exec                  on                     default
> hitachi/BACKUP  setuid                on                     default
> hitachi/BACKUP  readonly              off                    default
> hitachi/BACKUP  zoned                 off                    default
> hitachi/BACKUP  snapdir               hidden                 default
> hitachi/BACKUP  aclinherit            restricted             default
> hitachi/BACKUP  canmount              on                     default
> hitachi/BACKUP  xattr                 on                     default
> hitachi/BACKUP  copies                1                      default
> hitachi/BACKUP  version               5                      -
> hitachi/BACKUP  utf8only              off                    -
> hitachi/BACKUP  normalization         none                   -
> hitachi/BACKUP  casesensitivity       sensitive              -
> hitachi/BACKUP  vscan                 off                    default
> hitachi/BACKUP  nbmand                off                    default
> hitachi/BACKUP  sharesmb              off                    default
> hitachi/BACKUP  refquota              none                   default
> hitachi/BACKUP  refreservation        none                   default
> hitachi/BACKUP  primarycache          all                    default
> hitachi/BACKUP  secondarycache        all                    default
> hitachi/BACKUP  usedbysnapshots       0                      -
> hitachi/BACKUP  usedbydataset         156K                   -
> hitachi/BACKUP  usedbychildren        0                      -
> hitachi/BACKUP  usedbyrefreservation  0                      -
> hitachi/BACKUP  logbias               latency                default
> hitachi/BACKUP  dedup                 off                    default
> hitachi/BACKUP  mlslabel              none                   default
> hitachi/BACKUP  sync                  standard               default
> hitachi/BACKUP  refcompressratio      1.00x                  -
> hitachi/BACKUP  written               156K                   -
> hitachi/BACKUP  snapdev               hidden                 default
>
>
>
>
> On Tue, Oct 29, 2013 at 10:45 PM, Micky Martin <mickylmartin at gmail.com>wrote:
>
>> I would start with the basic recommendations. There's a post entitled ZFS
>> Caveats in Productions here on the mailing list.
>> There is ZFS Best Practices Guide<http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide>.
>> And there is the great Evil Tuning Guide<http://www.solarisinternals.com/wiki/index.php/ZFS_Evil_Tuning_Guide>
>> .
>>
>> To unsubscribe from this group and stop receiving emails from it, send an
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>>
>
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>



-- 
Cu stima Iulian

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