Amanda-Users

Re: confused by nightly dump report

2002-09-05 10:05:32
Subject: Re: confused by nightly dump report
From: Brian Cuttler <brian AT wadsworth DOT org>
To: Frank Smith <fsmith AT hoovers DOT com>
Date: Thu, 5 Sep 2002 09:52:08 -0400 (EDT)
Frank,

I think Joshua nailed it but your right, may be we can
squeeze a little more out of the hardware (looks like
we did pretty good though).

The drive is in fact a DLT 4000 on a SunOS 5.6 system (we
are in process of migrating to a new R280 with LTO drive
but that process is ongoing...).

>From amanda.conf

tapetype DLTIV  # what kind of tape it is (see tapetypes below)


define tapetype DLTIV {
    comment "Differential Digital Linear Tape IV"
    length 20000 mbytes
    filemark 8 kbytes           # I got this from Quantum's FAQ listing 
    speed 2500 kbytes
}

                                                thanks,

                                                Brian

> Well, your taper line in the report says it wrote 19.9G to tape, and your
> failed dump was trying to write 6.8G.  How big are your tapes, and what is
> your tapetype set to?
> 
> Frank
> 
> 
> --On Thursday, September 05, 2002 08:56:22 -0400 Brian Cuttler <brian AT 
> wadsworth DOT org> wrote:
> 
> >
> > We are very confused this morning.
> >
> > This report says "short write", usually I take that to
> > mean that we filled up the tape and we probably need to
> > perfrom a flush.
> >
> > However we have numbers in all the coluns have numbers which
> > always indicates to me that we wrote the dumps to tape (well,
> > except for one partition that outright failed).
> >
> > And the holding area is empty.
> >
> > Can you explain what really happened here ?
> >
> > These messages seem contradictory to me, could be that they
> > are, could be I've misunderstood their meanings.
> >
> > Please help us unravel this mystery.
> >
> >                                             thanks,
> >
> >                                             Brian
> >
> > ----- Forwarded message from bin AT wadsworth DOT org -----
> >
> > From bin AT csserv.wadsworth DOT org Thu Sep  5 04:57:33 2002
> > From: bin AT wadsworth DOT org
> > Date: Thu, 5 Sep 2002 04:57:11 -0400 (EDT)
> > Message-Id: <200209050857.EAA09880 AT newton.wadsworth DOT org>
> > To: amanda-adm AT csserv.wadsworth DOT org, leith AT csserv.wadsworth DOT 
> > org
> > Subject: NEWTON_DLT AMANDA MAIL REPORT FOR September 4, 2002
> > X-MailScanner: Found to be clean
> >
> > *** THE DUMPS DID NOT FINISH PROPERLY!
> >
> > *** A TAPE ERROR OCCURRED: [[writing file: short write]].
> > *** PERFORMED ALL DUMPS TO HOLDING DISK.
> >
> > THESE DUMPS WERE TO DISK.  Flush them onto tape NEWTON_DLT05 or a new tape.
> > Tonight's dumps should go onto 1 tape: NEWTON_DLT06.
> >
> > FAILURE AND STRANGE DUMP SUMMARY:
> >   newton     /usr4 lev 0 FAILED [out of tape]
> >   taper: FATAL syncpipe_get: w: unexpected EOF
> >   newton     /usr4 lev 0 FAILED ["data write: Broken pipe"]
> >   newton     /usr4 lev 0 FAILED [dump to tape failed]
> >
> >
> > STATISTICS:
> >                           Total       Full      Daily
> >                         --------   --------   --------
> > Dump Time (hrs:min)        4:15       3:22       0:40   (0:13 start)
> > Output Size (meg)       16191.4    12912.6     3278.8
> > Original Size (meg)     60330.5    31313.2    29017.4
> > Avg Compressed Size (%)    26.8       41.2       11.3
> > Tape Used (%)              81.0       64.6       16.4   (level:#disks ...)
> > Filesystems Dumped           43         21         22   (1:22)
> > Avg Dump Rate (k/s)       273.2      289.4      223.9
> > Avg Tp Write Rate (k/s)  1142.1     1090.0     1406.9
> >
> > 
> > FAILED AND STRANGE DUMP DETAILS:
> >
> > /-- newton     /usr4 lev 0 FAILED ["data write: Broken pipe"]
> > sendbackup: start [newton:/usr4 level 0]
> > sendbackup: info BACKUP=/usr/sbin/ufsdump
> > sendbackup: info RECOVER_CMD=/usr/local/bin/gzip -dc |/usr/sbin/ufsrestore 
> > -f... -
> > sendbackup: info COMPRESS_SUFFIX=.gz
> > sendbackup: info end
> >|   DUMP: Writing 32 Kilobyte records
> >|   DUMP: Date of this level 0 dump: Thu Sep 05 03:03:16 2002
> >|   DUMP: Date of last level 0 dump: the epoch
> >|   DUMP: Dumping /dev/rdsk/c2t13d0s6 (newton:/usr4) to standard output.
> >|   DUMP: Mapping (Pass I) [regular files]
> >|   DUMP: Mapping (Pass II) [directories]
> >|   DUMP: Estimated 14062200 blocks (6866.31MB) on 0.10 tapes.
> >|   DUMP: Dumping (Pass III) [directories]
> >|   DUMP: Dumping (Pass IV) [regular files]
> >|   DUMP: 7.14% done, finished in 2:11
> >|   DUMP: 18.53% done, finished in 1:28
> >|   DUMP: 27.82% done, finished in 1:18
> >|   DUMP: 34.19% done, finished in 1:17
> >|   DUMP: 42.90% done, finished in 1:06
> >|   DUMP: 51.08% done, finished in 0:57
> >|   DUMP: 58.90% done, finished in 0:48
> >|   DUMP: 67.61% done, finished in 0:38
> >|   DUMP: 75.00% done, finished in 0:30
> >|   DUMP: 81.82% done, finished in 0:22
> >|   DUMP: 90.67% done, finished in 0:11
> > \--------
> >
> > 
> > NOTES:
> >   driver: WARNING: /amanda/work: 175104000 KB requested, but only 16865439 
> > KB available.
> >   planner: Dump too big for tape: full dump of bohr:/ delayed.
> >   planner: Dump too big for tape: full dump of castor:/ delayed.
> >   planner: Dump too big for tape: full dump of newton:/ delayed.
> >   planner: Dump too big for tape: full dump of lyra:/ delayed.
> >   taper: tape NEWTON_DLT04 kb 19910336 fm 44 writing file: short write
> >
> > 
> > DUMP SUMMARY:
> >                                       DUMPER STATS                  TAPER 
> > STATS
> > HOSTNAME  DISK           L  ORIG-KB   OUT-KB COMP%  MMM:SS   KB/s  MMM:SS   
> > KB/s
> > -------------------------- -------------------------------------- 
> > --------------
> > bohr      /              1     5951      224   3.8    0:22   10.3    0:02  
> > 136.2
> > bohr      /doc_storage   0   888703   353024  39.7   48:03  122.4    4:08 
> > 1424.8
> > bohr      /new_docs      0  1051743   368640  35.1   52:31  117.0    4:19 
> > 1422.7
> > bohr      /opt           1    55039    23520  42.7    3:47  103.5    0:17 
> > 1362.2
> > bohr      /usr           0   261087   108640  41.6   16:07  112.3    1:16 
> > 1435.1
> > bohr      /var           0    16479     5728  34.8    1:18   73.0    0:05 
> > 1218.1
> > castor    /              1    68351     4928   7.2    1:10   70.2    0:05 
> > 1032.8
> > castor    /7a            0   760831   145440  19.1   16:01  151.4    1:41 
> > 1440.8
> > castor    /apoa          0  1373439   287456  20.9   45:51  104.5    3:22 
> > 1420.9
> > castor    /home1         0   980031   332736  34.0   27:48  199.5    3:55 
> > 1418.0
> > castor    /home3         1  1187487   204928  17.3   25:06  136.1    2:26 
> > 1405.5
> > denali    /              0   466047   213984  45.9   17:44  201.2    2:32 
> > 1408.1
> > denali    /home9         0  1012095   439008  43.4   36:33  200.2    5:09 
> > 1420.9
> > denali    /images        0   378111   258016  68.2   18:06  237.5    3:03 
> > 1412.6
> > etal      /              0  5474815  1298240  23.7  120:50  179.1   15:16 
> > 1416.9
> > etal      /network       1       63       32  50.8    0:38    0.8    0:02   
> > 34.5
> > etal      /usr/local     0  1047327   336992  32.2   25:29  220.4    3:57 
> > 1422.9
> > lyra      /              1     9183      512   5.6    0:55    9.3    0:02  
> > 310.4
> > lyra      /db8           1 13482783   838208   6.2   42:05  332.0    9:46 
> > 1431.1
> > lyra      /db9           1      511       32   6.3    0:04    7.2    0:02   
> > 39.1
> > lyra      /ndevelop      0  3263903  1432288  43.9   24:22  979.7   16:47 
> > 1421.9
> > lyra      /ndevelop2     1      511       32   6.3    0:37    0.9    0:02   
> > 39.8
> > mira      /              0  1263423   440000  34.8   19:06  383.8    5:07 
> > 1431.1
> > mira      /bkup-db       1 10950175  1078016   9.8  107:47  166.7   12:39 
> > 1420.1
> > mira      /db6           0      127       32  25.2    0:02   12.9    0:02   
> > 35.7
> > mira      /home1         0  4436575  1437472  32.4   91:17  262.5   16:46 
> > 1429.4
> > mira      /usr           1   426207   157216  36.9    6:52  381.3    1:54 
> > 1379.4
> > mira      /var           1   228575    69120  30.2    3:17  351.7    0:53 
> > 1295.0
> > newton    /              1    28415     4000  14.1    1:07   59.9    0:04 
> > 1125.4
> > newton    /export        0   800479   317408  39.7   16:05  328.8    3:43 
> > 1422.8
> > newton    /home10        1     4959     1600  32.3    0:50   32.1    0:01 
> > 1165.8
> > newton    /home11        1    41311    11616  28.1    1:34  123.7    0:09 
> > 1326.6
> > newton    /home4         1  1700639   584800  34.4   27:53  349.5    6:52 
> > 1419.3
> > newton    /logsback      0  3638303  3631456  99.8   89:49  673.9   89:49  
> > 673.8
> > newton    /nfsamba       0   945535   322144  34.1   17:01  315.6    3:47 
> > 1420.6
> > newton    /nfsamba2      1       95       32  33.7    0:02   12.9    0:02   
> > 40.0
> > newton    /opt           0  1376415   333184  24.2   29:04  191.1    3:55 
> > 1420.0
> > newton    /sol2          1   838047    76096   9.1    8:15  153.8    0:53 
> > 1440.6
> > newton    /usr3          1    19711     8032  40.7    1:13  110.1    0:06 
> > 1280.6
> > newton    /usr4          0   FAILED 
> > --------------------------------------------
> > newton    /usr5          1   121407    38304  31.6    3:34  178.9    0:28 
> > 1370.5
> > newton    /wclrspool     1   533855   250912  47.0   12:32  333.7    2:58 
> > 1412.1
> > panther   /              0  2629215  1160640  44.1   48:22  400.0   13:32 
> > 1429.6
> > panther   /data          1    10513     5344  50.8    0:15  356.1    0:05 
> > 1019.0
> >
> > (brought to you by Amanda version 2.4.1p1)
> >
> > ----- End of forwarded message from bin AT wadsworth DOT org -----
> 
> 
> 
> --
> Frank Smith                                                fsmith AT hoovers 
> DOT com
> Systems Administrator                                     Voice: 512-374-4673
> Hoover's Online                                             Fax: 512-374-4501


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