Dell EqualLogic PS6210XS Updating Firmware for EqualLogic PS Series Storage Ar - Page 12

PS Series Array Preparation — Known Limitations and Recommendations, Minimizing Host Disruption

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4 PS Series Array Preparation - Known Limitations and Recommendations This section lists known limitations and recommendations associated with preparing the array for a firmware update. Minimizing Host Disruption The firmware update process requires updating the firmware code and restarting each array controller. To reduce the impact of the controller restart operation on the host operating system and applications, the firmware update process occurs as a rolling controller update. During this process, a controller failover event causes the host initiators to log out and then log back in to the volumes connected to the SAN. If you have implemented the EqualLogic best practices for host settings and network design, this logout/ login process has minimal effect on host volumes. The update process does not impact data integrity or result in any data loss. For more information about minimizing host disruption, see Dell EqualLogic PS Series Storage Arrays iSCSI Initiator and Operating System Considerations: Optimizing Your SAN Environment for High Availability on the support website, eqlsupport.dell.com. Supported Update Paths When updating array firmware, you must follow the supported update path, as shown in Table 4. Supported PS Series Firmware Update Paths. The first column lists starting firmware versions, and the second column lists the versions to which they can be updated. NOTE: Dell Storage Update Manager can be used when updating firmware from the following versions: • PS Series Storage Arrays firmware version 6.0 and later • FS Series Storage Appliances firmware version 3.0 and later The notation used in the table refers to all releases of a given firmware revision. For example, 9.1.x refers to versions 9.1.1, 9.1.2, and so on, as well as all version 9.1 patch releases. Table 4. Supported PS Series Firmware Update Paths Starting Versions Supported Update Versions 10.0.x • Later 10.0.x releases 9.1.x • Later 9.1.x releases • 10.0.x releases 9.0.x • Later 9.0.x releases • 9.1.x releases 8.1.x • Later 8.1.x releases • 9.0.7 or later; cross-platform replication requires v9.0.9 or later 8.0.x • Later 8.0.x releases • 8.1.x releases 12 PS Series Array Preparation - Known Limitations and Recommendations

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4
PS Series Array Preparation — Known Limitations
and Recommendations
This section lists known limitations and recommendations associated with preparing the array for a
firmware
update.
Minimizing Host Disruption
The
firmware
update process requires updating the
firmware
code and restarting each array controller. To reduce the impact of the
controller restart operation on the host operating system and applications, the
firmware
update process occurs as a rolling controller
update. During this process, a controller failover event causes the host initiators to log out and then log back in to the volumes
connected to the SAN. If you have implemented the EqualLogic best practices for host settings and network design, this logout/
login process has minimal
effect
on host volumes. The update process does not impact data integrity or result in any data loss.
For more information about minimizing host disruption, see
Dell EqualLogic PS Series Storage Arrays iSCSI Initiator and Operating
System Considerations: Optimizing Your SAN Environment for High Availability
on the support website,
eqlsupport.dell.com
.
Supported Update Paths
When updating array
firmware,
you must follow the supported update path, as shown in
Table 4. Supported PS Series Firmware
Update Paths
. The
first
column lists starting
firmware
versions, and the second column lists the versions to which they can be
updated.
NOTE: Dell Storage Update Manager can be used when updating
firmware
from the following versions:
•
PS Series Storage Arrays
firmware
version 6.0 and later
•
FS Series Storage Appliances
firmware
version 3.0 and later
The notation used in the table refers to all releases of a given
firmware
revision. For example, 9.1.x refers to versions 9.1.1, 9.1.2, and so
on, as well as all version 9.1 patch releases.
Table 4. Supported PS Series Firmware Update Paths
Starting Versions
Supported Update Versions
10.0.x
•
Later 10.0.x releases
9.1.x
•
Later 9.1.x releases
•
10.0.x releases
9.0.x
•
Later 9.0.x releases
•
9.1.x releases
8.1.x
•
Later 8.1.x releases
•
9.0.7 or later; cross-platform replication requires v9.0.9 or later
8.0.x
•
Later 8.0.x releases
•
8.1.x releases
12
PS Series Array Preparation — Known Limitations and Recommendations