ESXi datastore with corrupted partition table


My colleague told me that he always failed to vmotion virtual machines to a particular datastore. The error message does not have much information, it just says the virtual machine files on the destination datastore is not accessible even the vmotion has not started yet.I found some relevant information in the vmkernel log: 2014-03-26T04:36:20.189Z cpu28:6188)NMP: nmp_ThrottleLogForDevice:2318: … Continue reading ESXi datastore with corrupted partition table

Fail to quiesce a virtual machine while taking snapshot


The issue was firstly caught by TSM. The backup job of a virtual machine failed and the log shows 02/22/2014 04:09:37 ANS4015E Error processing 'virtual-machine-name': unexpected TSM error (115) encountered.My understanding is that the first step of TSM backup is to take a snapshot. So I tried to manually take a snapshot of the running virtual … Continue reading Fail to quiesce a virtual machine while taking snapshot

EVA Max IO Transfer Size


The HP EVA storage is optimized to perform at 128KB Max IO transfer size or less. If the host operating system uses large block size, it may reduce the storage performance. For example, ESXi use 32MB by default. To tune the value, you can go to host software advanced settings. Reference: http://h20566.www2.hp.com/portal/site/hpsc/template.PAGE/public/psi/mostViewedDisplay/?javax.portlet.begCacheTok=com.vignette.cachetoken&javax.portlet.endCacheTok=com.vignette.cachetoken&javax.portlet.prp_efb5c0793523e51970c8fa22b053ce01=wsrp-navigationalState%3DdocId%253Dmmr_kc-0101662-8%257CdocLocale%253Dzh_HK&javax.portlet.tpst=efb5c0793523e51970c8fa22b053ce01&sp4ts.oid=436460&ac.admitted=1385425196533.876444892.199480143 http://h20566.www2.hp.com/portal/site/hpsc/template.PAGE/public/kb/docDisplay/?spf_p.tpst=kbDocDisplay&spf_p.prp_kbDocDisplay=wsrp-navigationalState%3DdocId%253Demr_na-c02518189-4%257CdocLocale%253D%257CcalledBy%253D&javax.portlet.begCacheTok=com.vignette.cachetoken&javax.portlet.endCacheTok=com.vignette.cachetoken http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1003469

Host IPMI System Event Log Status


Sometimes you may still receive ‘Hosst IPMI System Event Log Status’ alerts (which means the system event log is full) even after you reset event log and reset sensors. In my case, the solution is ssh into the ESXi host and restart the sfcbd-watchdog service. ~ # /etc/init.d/sfcbd-watchdog statussfcbd is running.~ # /etc/init.d/sfcbd-watchdog restart~ # … Continue reading Host IPMI System Event Log Status