[root@hisdb01:/]errpt IDENTIFIER TIMESTAMP T C RESOURCE_NAME DESCRIPTION E87EF1BE 0207150025 P O dumpcheck The largest dump device is too small. E87EF1BE 0206150025 P O dumpcheck The largest dump device is too small. E87EF1BE 0205150025 P O dumpcheck The largest dump device is too small. E87EF1BE 0204150025 P O dumpcheck The largest dump device is too small. E87EF1BE 0203150025 P O dumpcheck The largest dump device is too small. E87EF1BE 0202150025 P O dumpcheck The largest dump device is too small. E87EF1BE 0201150025 P O dumpcheck The largest dump device is too small. E87EF1BE 0131150025 P O dumpcheck The largest dump device is too small. E87EF1BE 0130150025 P O dumpcheck The largest dump device is too small. E87EF1BE 0129150025 P O dumpcheck The largest dump device is too small. E87EF1BE 0128150025 P O dumpcheck The largest dump device is too small. E87EF1BE 0127150025 P O dumpcheck The largest dump device is too small. E87EF1BE 0126150025 P O dumpcheck The largest dump device is too small.
Date/Time: Fri Feb 7 15:00:00 CST 2025 Sequence Number: 498 Machine Id: 00CB4D104B00 Node Id: hisdb02 Class: O Type: PEND WPAR: Global Resource Name: dumpcheck
Description The largest dump device is too small.
Probable Causes Neither dump device is large enough to accommodate a system dump at this time.
Recommended Actions Increase the size of one or both dump devices.
Detail Data Largest dump device lg_dumplv Largest dump device size in kb 4194304 Current estimated dump size in kb 4637388 --------------------------------------------------------------------------- LABEL: DMPCHK_TOOSMALL IDENTIFIER: E87EF1BE
When an unexpected system halt occurs, the system dump facility automatically copies selected areas of kernel data to the primary dump device. These areas include kernel segment 0, and other areas registered in the Master Dump Table by kernel modules or kernel extensions.
[root@hisdb01:/]crontab -l # @(#)08 1.15.1.3 src/bos/usr/sbin/cron/root, cmdcntl, bos720 2/11/94 17:19:47 # IBM_PROLOG_BEGIN_TAG # This is an automatically generated prolog. # # bos720 src/bos/usr/sbin/cron/root 1.15.1.3 # # Licensed Materials - Property of IBM # # COPYRIGHT International Business Machines Corp. 1989,1994 # All Rights Reserved # # US Government Users Restricted Rights - Use, duplication or # disclosure restricted by GSA ADP Schedule Contract with IBM Corp. # # IBM_PROLOG_END_TAG # # COMPONENT_NAME: (CMDCNTL) commands needed for basic system needs # # FUNCTIONS: # # ORIGINS: 27 # # (C) COPYRIGHT International Business Machines Corp. 1989,1994 # All Rights Reserved # Licensed Materials - Property of IBM # # US Government Users Restricted Rights - Use, duplication or # disclosure restricted by GSA ADP Schedule Contract with IBM Corp. # #0 3 * * * /usr/sbin/skulker #45 2 * * 0 /usr/lib/spell/compress #45 23 * * * ulimit 5000; /usr/lib/smdemon.cleanu > /dev/null 0 11 * * * /usr/bin/errclear -d S,O 30 0 12 * * * /usr/bin/errclear -d H 90 0,5,10,15,20,25,30,35,40,45,50,55 * * * * /usr/sbin/dumpctrl -k >/dev/null 2>/dev/null 0 15 * * * /usr/lib/ras/dumpcheck >/dev/null 2>&1 30 23 * * * /usr/sbin/ntpdate 192.168.50.250 0 0 * * * /usr/bin/nmon -f -N -m /nmon -s 30 -c 2880
我们来简单看一下这个命令的作用
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[root@hisdb01:/]/usr/lib/ras/dumpcheck -h getopt: Not a recognized flag: h Usage: dumpcheck [[-l] [-p ] [-t time-parameters] [-P ]] dumpcheck [-r ]
Checks to see that the dump device and copy directory are able to receive the system dump.
-l Log any warnings to the error log. -p Print any warnings produced to stdout. -r Remove the crontab entry for this function. -P Indicates that the changes are to be made permenently. -t time-parameters Change the time when dumpcheck is executed.
The -r parameter must be specified alone, (i.e.) it is not valid with any other parameters.
执行一下
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[root@hisdb01:/]/usr/lib/ras/dumpcheck -p The largest dump device is too small.
Largest dump device lg_dumplv Largest dump device size in kb 4194304 Current estimated dump size in kb 4637388
[root@hisdb01:/]lsvg rootvg VOLUME GROUP: rootvg VG IDENTIFIER: 00cb47b000004b0000000189e0b21f89 VG STATE: active PP SIZE: 1024 megabyte(s) VG PERMISSION: read/write TOTAL PPs: 1064 (1089536 megabytes) MAX LVs: 256 FREE PPs: 398 (407552 megabytes) LVs: 15 USED PPs: 666 (681984 megabytes) OPEN LVs: 14 QUORUM: 1 (Disabled) TOTAL PVs: 2 VG DESCRIPTORS: 3 STALE PVs: 0 STALE PPs: 0 ACTIVE PVs: 2 AUTO ON: yes MAX PPs per VG: 32512 MAX PPs per PV: 1016 MAX PVs: 32 LTG size (Dynamic): 256 kilobyte(s) AUTO SYNC: no HOT SPARE: no BB POLICY: relocatable PV RESTRICTION: none INFINITE RETRY: no DISK BLOCK SIZE: 512 CRITICAL VG: no FS SYNC OPTION: no CRITICAL PVs: no ENCRYPTION: no
执行lg_dumplv扩容，之后再查看
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[root@hisdb01:/]extendlv lg_dumplv 2 [root@hisdb01:/]lslv lg_dumplv LOGICAL VOLUME: lg_dumplv VOLUME GROUP: rootvg LV IDENTIFIER: 00cb47b000004b0000000189e0b21f89.12 PERMISSION: read/write VG STATE: active/complete LV STATE: opened/syncd TYPE: sysdump WRITE VERIFY: off MAX LPs: 512 PP SIZE: 1024 megabyte(s) COPIES: 1 SCHED POLICY: parallel LPs: 6 PPs: 6 STALE PPs: 0 BB POLICY: relocatable INTER-POLICY: minimum RELOCATABLE: yes INTRA-POLICY: middle UPPER BOUND: 32 MOUNT POINT: N/A LABEL: None MIRROR WRITE CONSISTENCY: on/ACTIVE EACH LP COPY ON A SEPARATE PV ?: yes Serialize IO ?: NO INFINITE RETRY: no PREFERRED READ: 0 ENCRYPTION: no
这时再查看，可以看到rootvg的FREE PPS少了2个。
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[root@hisdb01:/]lsvg rootvg VOLUME GROUP: rootvg VG IDENTIFIER: 00cb47b000004b0000000189e0b21f89 VG STATE: active PP SIZE: 1024 megabyte(s) VG PERMISSION: read/write TOTAL PPs: 1064 (1089536 megabytes) MAX LVs: 256 FREE PPs: 396 (405504 megabytes) LVs: 15 USED PPs: 668 (684032 megabytes) OPEN LVs: 14 QUORUM: 1 (Disabled) TOTAL PVs: 2 VG DESCRIPTORS: 3 STALE PVs: 0 STALE PPs: 0 ACTIVE PVs: 2 AUTO ON: yes MAX PPs per VG: 32512 MAX PPs per PV: 1016 MAX PVs: 32 LTG size (Dynamic): 256 kilobyte(s) AUTO SYNC: no HOT SPARE: no BB POLICY: relocatable PV RESTRICTION: none INFINITE RETRY: no DISK BLOCK SIZE: 512 CRITICAL VG: no FS SYNC OPTION: no CRITICAL PVs: no ENCRYPTION: no
