Release Notes

Table of contents
3 Best Practices for Implementing VMware vSphere in a Dell PS Series Storage Environment | TR1091 | v1.3
Table of contents
Revisions............................................................................................................................................................................. 2
Table of contents ................................................................................................................................................................ 3
Preface ................................................................................................................................................................................ 4
Executive summary ............................................................................................................................................................. 4
1 Introduction ................................................................................................................................................................... 2
2 Host based connectivity and high availability ............................................................................................................... 3
2.1 Keep ESXi updated to current revision .............................................................................................................. 3
2.2 iSCSI subnets and routing recommendations .................................................................................................... 3
2.3 Jumbo frames ..................................................................................................................................................... 3
2.4 CHAP authentication for access control ............................................................................................................. 3
2.5 Selecting optimal MPIO mode ............................................................................................................................ 4
3 Host based performance .............................................................................................................................................. 7
3.1 Delayed ACK ...................................................................................................................................................... 7
3.2 Storage I/O control.............................................................................................................................................. 9
4 Datastore size and queue depth ................................................................................................................................ 10
5 Virtual machine considerations .................................................................................................................................. 11
6 Data Drives ................................................................................................................................................................. 12
6.1 VMDK on VMFS ............................................................................................................................................... 12
6.2 iSCSI in the guest VM ...................................................................................................................................... 14
6.3 Raw Device Mapped LUNs .............................................................................................................................. 17
7 Conclusion .................................................................................................................................................................. 18
A Technical support and resources ............................................................................................................................... 19
A.1 Related documentation ..................................................................................................................................... 19