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33

Known problems and limitations

EMC AX4-5 Series Integrated Management Software Release Notes

Platforms Brief description Symptom details

Solution (or

workaround)

AX4-5

AX4-5i

AX4-5SC

AX4-5SCi

AX4-5SCF4

AX4-5F8

FLARE Operating

Environment

Single-SP panic occurs when

the cache is shutting down.

182007

Frequency of occurrence

:

Rarely under a specific set of

circumstances.

Severity

:

Medium

If two drives within the

same RAID group

experience media errors

on the same logical block

address, then shutting

down the cache can result

in a single-SP panic.

The system recovers

from the SP reboot

and continues normal

operation. Replacing

one or both of the

drives will prevent

future occurrences.

Exists in versions

:

02.23.050.5.703

02.23.050.5.705

02.23.050.5.707

02.23.050.5.709

AX4-5

AX4-5i

AX4-5SC

AX4-5SCi

AX4-5SCF4

AX4-5F8

FLARE Operating

Environment

When any unsupported drive is

inserted into a single-SP

system, the software may

display an incorrect alert:

failed disk.

183860

Frequency of occurrence

:

Rarely under a specific set of

circumstances

Severity

:

Low

When any unsupported

drive is inserted into a

single-SP system, the

software correctly faults

the drive but displays an

incorrect alert: failed

disk instead of the

correct alert:

unsupported

drive.

None.

Exists in versions

:

02.23.050.5.703

02.23.050.5.705

02.23.050.5.707

02.23.050.5.709

AX4-5

AX4-5i

AX4-5SC

AX4-5SCi

AX4-5SCF4

AX4-5F8

Navisphere Express

Component statuses reported

in the UI appear to toggle

between normal and faulted.

173249, 173669, 174548

Frequency of occurrence

:

Always under a specific set of

circumstances

Severity

:

Medium

Inconsistent cabling of the

two sides of the storage

system causes component

state information to differ

between one side of the

system and the other. In

this scenario, states of

various components, such

as LCCs, hot spares, and

others, may toggle

between normal and

faulted, depending on

which SP is reporting the

state. You may also

receive duplicate emails

for various alerts, if one SP

believes a component is

faulted, and the other SP

believes its state to be

normal.

Check cabling to

ensure that the

configuration is

consistent between

each side of the

system.

Exists in versions

:

02.23.050.5.504

02.23.050.5.703

02.23.050.5.705

02.23.050.5.707

02.23.050.5.709

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