Re: Tape mark error on LTO drive/tapes
2003-03-05 10:58:10
>From discussions on the list last week "I'd understood"* that
the tape length and I assume** by extension the filemark size
are used only to estimate tape capacity and determine what needs
to be bumped or if a level zero could be advanced.
What is the speed value used for ?
* Note, phrase "I'd understood" has no confirmed relevance to reality
and may not be worth the electrons it was written with.
> These dumps were to tape Daily001.
> *** A TAPE ERROR OCCURRED: [[writing filemark: Input/output error]].
> I am getting regularish error as below.
> It seems to be related to a long pause in the cycles as the
> last halfcut partition is dumped prior to taping
>
> Here is my tapetype
>
> define tapetype Ultrium {
> comment "Ultrium LTO"
> length 101632 mbytes
> filemark 10 kbytes
> speed 13884 kbytes
> }
>
> NB filemark WAS 0 kbytes, and as someone else has just queried -- is
> this OK?
> I set it up to 10 kbytes to actually 'make a space'
>
> And no the actual dump size is not bigger than the tape size
> (unless I am badly miscounting something...)
>
>
> --------------------8<---------------------------------
>
> Some dumps may have been left in the holding disk.
> Run amflush to flush them to tape.
> The next tape Amanda expects to use is: Daily005.
>
> FAILURE AND STRANGE DUMP SUMMARY:
> halfcut da0s3f lev 1 FAILED [out of tape]
>
>
> STATISTICS:
> Total Full Daily
> -------- -------- --------
> Estimate Time (hrs:min) 1:25
> Run Time (hrs:min) 4:19
> Dump Time (hrs:min) 2:45 0:15 2:30
> Output Size (meg) 20657.3 774.2 19883.1
> Original Size (meg) 36118.5 1854.0 34264.5
> Avg Compressed Size (%) 57.2 41.8 58.0 (level:#disks
> ...)
> Filesystems Dumped 10 8 2 (1:1 2:1)
> Avg Dump Rate (k/s) 2133.4 864.7 2262.7
>
> Tape Time (hrs:min) 0:15 0:02 0:13
> Tape Size (meg) 6360.2 774.6 5585.6
> Tape Used (%) 6.3 0.8 5.5 (level:#disks
> ...)
> Filesystems Taped 9 8 1 (2:1)
> Avg Tp Write Rate (k/s) 7066.8 5633.7 7325.2
>
>
> NOTES:
> planner: Incremental of wombat.bytecraft.au.com:da0s3f bumped to level
> 2.
> planner: Full dump of spyder.bytecraft.au.com:da0s4e promoted from 3
> days ahead.
> planner: Full dump of spyder.bytecraft.au.com:da0s3g promoted from 3
> days ahead.
> planner: Full dump of halfcut:da0s2f promoted from 3 days ahead.
> planner: Full dump of halfcut:da0s2a promoted from 3 days ahead.
> planner: Full dump of spyder.bytecraft.au.com:da0s2f promoted from 3
> days ahead.
> planner: Full dump of wombat.bytecraft.au.com:da0s2a promoted from 3
> days ahead.
> planner: Full dump of wombat.bytecraft.au.com:da0s2f promoted from 3
> days ahead.
> planner: Full dump of spyder.bytecraft.au.com:da0s2a promoted from 3
> days ahead.
> taper: tape Daily001 kb 6512800 fm 9 writing filemark: Input/output
> error
> driver: going into degraded mode because of tape error.
>
>
> DUMP SUMMARY:
> DUMPER STATS TAPER STATS
>
> HOSTNAME DISK L ORIG-KB OUT-KB COMP% MMM:SS KB/s MMM:SS
> KB/s
> -------------------------- ---------------------------------
> ------------
> halfcut da0s2a 0 59380 19968 33.6 0:151304.8
> 0:082597.4
> halfcut da0s2f 0 483220 188640 39.0 3:18 954.2
> 0:286696.1
> halfcut da0s3f 1 2365768014640698 61.9 98:502469.0 FAILED
> ----
> spyder.bytec da0s2a 0 122080 97888 80.2 0:581696.8
> 0:185434.3
> spyder.bytec da0s2f 0 637700 159936 25.1 2:291074.1
> 0:266130.4
> spyder.bytec da0s3g 0 820 224 27.3 0:00 696.3 0:02
> 104.2
> spyder.bytec da0s4e 0 216370 174880 80.8 2:011444.1
> 0:286205.7
> wombat.bytec da0s2a 0 79410 38752 48.8 0:44 872.9
> 0:103730.8
> wombat.bytec da0s2f 0 299500 112864 37.7 5:32 340.1
> 0:205611.1
> wombat.bytec da0s3f 2 114291505719648 50.0 51:091864.0
> 13:017325.2
>
> (brought to you by Amanda version 2.4.3b4)
>
>
>
> Murray Taylor
> Special Projects Engineer
> ---------------------------------
> Bytecraft Systems & Entertainment
> Phone: 61 3 8710 2555
> Fax: 61 3 8710 2599
> Direct: 61 3 9238 4275
> Mobile: 61 0417 319 256
> Email: murraytaylor AT bytecraftsystems DOT com
> or visit us on the web
> http://www.bytecraftsystems.com
> http://www.bytecraftentertainment.com
>
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