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Technical notes

EMC AX4-5 Series Integrated Management Software Release Notes

Notes:

 This procedure may take 30-60 minutes to complete.

 During this procedure, you may see some temporary alerts including

0x7428, 0x743a, 0x720f, 0x7403 or 0x7404. After the upgrade

completes, all alerts will eventually disappear.

 An optional second SPS can be added after Step 7. The single SP will

not use the SPS so the second SPS is always new when the second SP

comes up.

SP reboot

EMC recommends that for dual-SP storage systems (AX4-5, AX4-5i or

AX4-5F8), you reboot an SP only during periods of low I/O activity. If

the server does not have at least one path to each SP and failover

software installed and configured, EMC recommends stopping server

I/O. For a single-SP storage system (AX4-5SC, AX4-5SCi or AX4-5SCF4),

stop all I/O to the storage system.

Returning a storage system to an uninitialized state

For detailed instructions on how to return an AX4-5 storage system to

the uninitialized state (no management passwords, able to change

management IP addresses) go to the AX4-5 support website and choose

Service & Support.

Event log entries appear out of order

FLARE OE software may not always enter items into the event log in the

order in which they occurred. This happens only when several events

occur at approximately the same time. The time stamps are correct.

Hot spare ownership

Once a hot spare is assigned to a degraded virtual disk, that virtual disk

owns it until either the virtual disk is repaired and the equalize

operation completes, or the virtual disk is destroyed. If the virtual disk is

accidentally double-faulted because you removed the wrong disk

module during repair, then re-inserting the incorrectly removed disk

module should cause the virtual disk to return to its original state

(including continued operation with the hot spare engaged).

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Dell EMC AX4-5 Guía de instalación Pagina 40