I want to upgrade esxi 5.1 to 5.5 . i get rvtools report . what is mean bios date . i must upgrade server firmware or not ?
VMware Compatibility Guide - System Search
| Model | BIOS Version | BIOS Date |
| ProLiant BL460c G7 | I27 | 2013.07.02 03:00:00 |
| ProLiant BL460c G7 | I27 | 2013.07.02 03:00:00 |
| ProLiant BL460c G7 | I27 | 2011.05.05 03:00:00 |
| ProLiant BL460c G7 | I27 | 2011.05.05 03:00:00 |
| CPU Model |
| Intel(R) Xeon(R) CPU X5660 @ 2.80GHz |
| Intel(R) Xeon(R) CPU X5660 @ 2.80GHz |
| Intel(R) Xeon(R) CPU X5660 @ 2.80GHz |
| Intel(R) Xeon(R) CPU X5660 @ 2.80GHz |