Dialogic DSI SS7MD Instrukcja Użytkownika Pobierz pdf (Strona 147)

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Dialogic

DSI Signaling Server SGW Mode User Manual Issue 5

Refer to hard disk drive removal instructions in the Dialogic

DSI SS7G31 and SS7G32 Signaling Servers

Hardware Manual. Once the disk has been replace and, in the case of the SS7G31, the system restarted the

replacement drive should be activated using the MNINE command (see Section 6.9.4 on page 94), at which

time the system will perform a synchronization function copying all software to the newly installed disk drive.

The 'disk unavailable' alarm will persist until both disk drives are synchronized. The disk unavailable alarm

will persist even if a failed disk drive is removed and not replaced.

Spare hard disk drives for the SS7G31 and SS7G32 system are available as on orderable part. Refer to the

Dialogic

DSI SS7G31 and SS7G32 Signaling Servers Product Data Sheet (navigate from http://

www.dialogic.com/products/signalingip_ss7components/signaling_servers_and_gateways.htm) for part

number information.

Important:Although the RAID management software has been designed to be robust it is important to

follow the removal and replacement procedures described above in order to ensure RAID array

hard disk drive integrity.

Warning: USB storage devices should not be connected to the Signaling Server during hard disk drive

removal and replacement. Verify that all attached USB storage devices are removed before

performing HDD removal, replacement and re-activation.

Disk drive replacement should be performed during a scheduled maintenance period and, for the SS7G32,

which supports hot swap, during a period of light traffic. re-synchronization of disk drives subsequent to

replacement can take between 5-10 minutes, depending on the conditions and load under which the

Signaling Server is operating. The Signaling Server should not be restarted during this period and MMI

activity should be limited to checking the status of the re-synchronization. The status of the disk drives can

be identified using the STDDP command (see Section 6.14.6 on page 126). A status of UP indicates that a

drive is fully operational, a status of DOWN indicates either that the disk is faulty or otherwise unable to

Synchronize. A status INACTIVE indicates that is has been deactivated by the user, a status of RESTARTING

indicates that it is attempting to synchronize but the operation is not yet complete.

If the server is restarted through power loss or user action while synchronization is in progress the

synchronizing disk will be in an indeterminate state and on restart may cause the server to fail to boot. In

such an event the disk should be removed from the server and any formatting on the disk manually

removed. The disk should be re-installed on the server and the system booted. To restart synchronization

the user should deactivate (MNINI) and the re-active (MNINE) the disk. On the SS7G32 the disk does not

need to be re-formatted instead the user should simply boot without the disk, insert it when the system is

operational and re-activate synchronization using MNINI/MNINE.

If a disk drive remains in the 'DOWN' state after attempting re-activation, either the replacement drive is

faulty or it has previously been formatted (RAID will only function with unformatted drives). In the case of

the SS7G32, RAID mirroring may also fail and the disk remain 'DOWN' due to the action of the hot-swap. If

this occurs the Server should be restarted and synchronization re-activated using MNINI/MNINE.

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