EMC AX100 Release Notes - Page 25

Description, Details, Infrequent, Admsnap - Linux, Frequently, Snapshots, Maximum number, Limitations

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Page 25 highlights

Known problems and limitations Description When you try to create a snapshot, the following error is displayed: Unable to create snapshot resources. Please create an additional disk pool and try again. Details Frequency: Infrequent Prevention/resolution: Wait one minute and try to create the snapshot again. Admsnap problems Description Admsnap - Linux Admsnap on a Red Hat Linux system cannot access more than seven devices on the secondary (backup) server. Details Frequency: Frequently Prevention/resolution: By default the Linux kernel creates only eight sg devices. (The internal disk uses one of the sg devices.) If you want the server to access more than seven devices, you must create additional sg devices and link them to the sd devices. PowerPath problems PowerPath problems are described in the PowerPath release notes on the AX100 support website. Limitations This section lists issues that may affect the configuration or repair of the storage system. Snapshot configuration limitations Snapshots Per storage system Per source virtual disk Maximum number 4 1 PowerPath limitations Any PowerPath limitations are described in the PowerPath release notes on the AX100 support website. EMC AX100-Series Integrated Management Software Release Notes 25

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25
Known problems and limitations
EMC AX100-Series Integrated Management Software Release Notes
Description
Details
When you try to create a snapshot, the following error
is displayed:
Unable to create snapshot
resources. Please create an
additional disk pool and try
again.
Frequency
:
Infrequent
Prevention/resolution
: Wait one minute and try to create the
snapshot again.
Admsnap problems
Description
Details
Admsnap – Linux
Admsnap
on a Red Hat Linux
system cannot access more than seven devices on
the secondary (backup) server.
Frequency
:
Frequently
Prevention/resolution
: By default the Linux kernel creates only
eight
sg
devices. (The internal disk uses one of the
sg
devices.) If you want the server to access more than seven
devices, you must create additional
sg
devices and link them
to the
sd
devices.
PowerPath problems
PowerPath problems are described in the PowerPath release notes on the
AX100 support website.
Limitations
This section lists issues that may affect the configuration or repair of the
storage system.
Snapshot configuration limitations
Snapshots
Maximum number
Per storage system
4
Per source virtual disk
1
PowerPath limitations
Any PowerPath limitations are described in the PowerPath release notes
on the AX100 support website.