HP D2D2503i HP StoreOnce 2700, 4500, 4700 Backup System User Guide (BB877-9090 - Page 177

Multiple users, Connecting to the StoreOnce Backup system from the backup application

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Use StoreOnce CLI commands to show the current license status and apply the demo and individual licenses. See the HP StoreOnce Backup system CLI Reference Guide and "Licensing" (page 14) for more information. Multiple users The HP StoreOnce Management Console supports multiple GUI and CLI sessions. However, we recommend: • No more than 8 active Operator sessions for the GUI • No more than 16 active Operator sessions for the CLI • No more than 1 active Admin session to ensure there is no confusion when configuration changes are made Currently, you cannot see which users are logged in. The accounts show command will list all the user accounts defined for the HP StoreOnce Backup system. For each account the authority level is provided. Connecting to the StoreOnce Backup system from the backup application Make sure you have the latest version or software patches for the backup application. Please see http://www.hp.com/go/ebs for supported applications. Stop and restart the backup application services after the backup device has been discovered. If you still cannot access the device, check Device Manager to make sure it is accessible from the host. • For iSCSI devices: Make sure that the iSCSI initiator is connected to the devices and log on to them, if they are not, configure them on the Targets tab of the iSCSI Initiator. • For FC devices: Models with an 8Gb FC card have a theoretical limit of 255 devices per FC port on a host or switch; models with 4Gb FC card have a theoretical limit of 127 devices per FC port on a host or switch NOTE: There are practical limitations on the number of devices that each host and FC switch or HBA can access. It is possible to configure more drive and library devices than a host can access. The limit for Windows or Linux hosts using the iSCSI interface is 64. Although the Fibre Channel connection supports a greater theoretical number of devices per FC port on a host or switch, it is recommended that no more than 64 devices are configured for use by a single host. Timeout problems with NAS CIFS shares By default, Windows CIFS timeout is set low for NAS backup implementations. This can lead to various error message related to lost connection to the share, unrecoverable write errors or timeout problems resulting backup job failures. It is recommended to add or to increase the "SessTimeout" value from the default of 45 (seconds) to 300 (five minutes). By increasing the timeout, it ensures that the Windows CIFS timeout does not cause your backup application to prematurely timeout the running job. NOTE: This can resolve issues resulting from timeouts, but is not exclusively the only reason for such failures. A large number of 'out of sequence' writes causing slow response times within the product often can be the root cause. Further analysis may be required should increasing the timeout not be successful. In order to increase the timeout: 1. From the Start menu, click Run.... 2. Type regedit in the Open: field and click OK. Multiple users 177

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Use StoreOnce CLI commands to show the current license status and apply the demo and individual
licenses. See the
HP StoreOnce Backup system CLI Reference Guide
and
“Licensing” (page 14)
for more information.
Multiple users
The HP StoreOnce Management Console supports multiple GUI and CLI sessions. However, we
recommend:
•
No more than 8 active Operator sessions for the GUI
•
No more than 16 active Operator sessions for the CLI
•
No more than 1 active Admin session to ensure there is no confusion when configuration
changes are made
Currently, you cannot see which users are logged in. The
accounts show
command will list all
the user accounts defined for the HP StoreOnce Backup system. For each account the authority
level is provided.
Connecting to the StoreOnce Backup system from the backup application
Make sure you have the latest version or software patches for the backup application. Please see
h
t
tp://w
w
w
.hp
.co
m/go/eb
s
for supported applications.
Stop and restart the backup application services after the backup device has been discovered. If
you still cannot access the device, check Device Manager to make sure it is accessible from the
host.
•
For iSCSI devices: Make sure that the iSCSI initiator is connected to the devices and log on
to them, if they are not, configure them on the Targets tab of the iSCSI Initiator.
•
For FC devices: Models with an 8Gb FC card have a theoretical limit of 255 devices per FC
port on a host or switch; models with 4Gb FC card have a theoretical limit of 127 devices
per FC port on a host or switch
NOTE:
There are practical limitations on the number of devices that each host and FC switch or
HBA can access. It is possible to configure more drive and library devices than a host can access.
The limit for Windows or Linux hosts using the iSCSI interface is 64. Although the Fibre Channel
connection supports a greater theoretical number of devices per FC port on a host or switch, it is
recommended that no more than 64 devices are configured for use by a single host.
Timeout problems with NAS CIFS shares
By default, Windows CIFS timeout is set low for NAS backup implementations. This can lead to
various error message related to lost connection to the share, unrecoverable write errors or timeout
problems resulting backup job failures. It is recommended to add or to increase the “SessTimeout”
value from the default of 45 (seconds) to 300 (five minutes).
By increasing the timeout, it ensures that the Windows CIFS timeout does not cause your backup
application to prematurely timeout the running job.
NOTE:
This can resolve issues resulting from timeouts, but is not exclusively the only reason for
such failures. A large number of ‘out of sequence’ writes causing slow response times within the
product often can be the root cause. Further analysis may be required should increasing the timeout
not be successful.
In order to increase the timeout:
1.
From the Start menu, click
Run...
.
2.
Type
regedit
in the
Open:
field and click
OK
.
Multiple users
177