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Chapter 4 Maintenance
4.1 Upgrading the JBOD Controller Firmware
NOTE: The JBOD firmware upgrade procedure must be done four
times. First is the Expander A1, next is the Expander B1 and A2,
then last the Expander B2.
NOTE: There must be no I/O in the disk drives in the JBOD
subsystem
firmware upgrade.
Power Supply 1
1
Expander A1
Expander B1
NOTE: It is important to stop I/O access to JBOD subsystem during
firmware upgrade.
(RAID
volumes
Power Supply 2
2
Fan 6
64 Bays SAS to SAS/SATA JBOD Subsystem
should
not
be
3
Expander B2
Expander A2
accessed)
during
4
User Manual
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