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06-29-2016 03:21 AM
06-29-2016 03:21 AM
TPVV 使用需谨慎
最近在某客户那里遇到使用TPVV总空间超过存储实际容量,导致设备故障,与大家分享。
客户存储:3par SS7200,主机 HPUX 11.31
故障现象:
该设备为客户测试设备,客户准备通过DP将应用数据导入测试机,在导入的过程中,发现DP恢复进程停顿,且主机硬盘读写100%。所有命令输入在主机端反馈都非常慢。
客户自行重启了主机,发现无法启动。远程过去,发现启动过程在数据VG挂载过程需要fsck,且一直停顿在那里。为让客户尽快启动设备,进入单用户模式,修改fstab禁止数据VG自动挂载,成功启动系统。手动挂载数据VG的几个LV,其中有一个提示需要进行fsck,执行了fsck后,建议客户等待它完成后再进行其他操作。
过了一天,客户通知说fsck进程还在跑,感觉有点不对劲。检查系统日志,发现有大量报错
Jun 12 11:03:01 cnhq0003 vmunix: IO details : blkno : 188669808, sector no : 377339616
Jun 12 11:03:01 cnhq0003 vmunix: class : lunpath, instance 49
Jun 12 11:03:01 cnhq0003 vmunix: Asynchronous write failed on LUN (dev=0x1000024)
Jun 12 11:03:01 cnhq0003 vmunix: IO details : blkno : 188628320, sector no : 377256640
Jun 12 11:03:01 cnhq0003 vmunix: class : lunpath, instance 14
Jun 12 11:03:01 cnhq0003 vmunix: Asynchronous write failed on LUN (dev=0x1000014)
Jun 12 11:03:01 cnhq0003 vmunix: IO details : blkno : 188628544, sector no : 377257088
Jun 12 11:03:01 cnhq0003 vmunix: class : lunpath, instance 49
Jun 12 11:03:01 cnhq0003 vmunix: Asynchronous write failed on LUN (dev=0x1000024)
Jun 12 11:03:01 cnhq0003 vmunix: IO details : blkno : 188669504, sector no : 377339008
Jun 12 11:03:01 cnhq0003 vmunix: class : lunpath, instance 14
Jun 12 11:03:01 cnhq0003 vmunix: Asynchronous write failed on LUN (dev=0x1000014)
后线分析后,建议检查存储。
检查SS7200,发现客户建了大量的TPVV,且当时容量使用率已经达到100%
……
与客户沟通后,删除了其中一个不使用的full vv,释放了800G空间。
再次执行挂载,按照提示进行fsck,几秒内顺利完成! Syslog链路告警也不再有新告警生成。
TPVV虽好,适用需谨慎!
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06-30-2016 01:49 AM
06-30-2016 01:49 AM
Re: TPVV 使用需谨慎
Hi NJ,
Thank you for choosing HPE Support Community. Could you please re-post your question here in English? This will help everybody in the Forum understand the discussion and allow them to participate as well. Thanks.
Thanks,
Parvez_Admin
I work for HPE
[Any personal opinions expressed are mine, and not official statements on behalf of Hewlett Packard Enterprise]