ESX freeze on SAN Rescan

VI Client 2.0.1でrescan-sanすると追加したデバイスやボリュームを全て同時に検索しにいきESXがハングするらしい。怖い。

FYI: be very VERY careful when doing a rescan in the VI client. If you are using VI client 2.0.1 the rescan san will scan for both new storage adapters and new vmfs volumes at the same time which causes LUN thrashing and hangs the server. In version 2.0 it scans them one at a time. A bug report has been submitted to VMware. In the future just scan for either one at a time and you should be fine!

http://virtrix.blogspot.com/2006/12/vmware-esx-freeze-on-san-rescan.html