HP StorageWorks 3000/5000 Enterprise Virtual Array updating product software guide (VCS 4.100) (5697-7055, November 2007)

• Ensure that all storage systems involved in a DR relationship are fully functional. See

“Step 1. Checking the health of the Enterprise Virtual Array”onpage24.

• When using multiple HP Continuous Access EVA relationships, make sure the following conditions

are m et:

• N ot more than t wo EVA 3000/5000 VCS versions (either 4.007, or 4.100) are running.

• All EVA 4000/6000/8000 storage systems must be running XCS 5.1xx or later.

• If you need to update both VCS and XCS, do not attempt to upgrade both simultaneously.

Complete the upgrade one family of ﬁrmware before upgrading the other.

• Suspend D R group replication for the d uration of the upgrade process on the destination, even if

the intersite links are not available.

• Do not create or delete DR groups or add members or remove members from DR groups when

any storage s ystem in the HP Continuous Access EVA relationship is still on VCS 4.007 and

others are on VCS 4.100.

A code load of one controller forces both controllers on a storage system to reboot. If the controller being

upgraded is used as a destination for replication I/O, the source controller logs new I/O while the

destination controller reboots. After completing the ﬁrmware upgrade of the d estination then resume

the replication to allow the controller to perform a m erge. Wait for the merge to conclude after a code

load, or wait three minutes—whichever is longer—before p er forming the code load on any other storage

system(s) in the relationship.

Downgrad

ing the Enterprise Virtual Array

Downgrad

ing while retaining existing data is suppor ted from VCS 4.100 to any earlier version of VCS

4.00x ﬁr

mware.

Downgrading while retaining existing data from VCS 4.100 to any earlier version of VCS 3.xxx ﬁrmware

is not supported. Downgrade is only possible on an uninitialized storage system.

Contact your HP-authorized service representative for more information on VCS downgrades.

Required documentation

Table 3 lists documents that will be required when per forming the system software upgrade. If you do not

have co pies of these documents, use the listed URL to obtain the latest versions.

Getting started