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This is the utility to use SCSI 3 PR command more easily. Following is the provided options

Option

Description

-c diskId

It deletes Reserved-Key and Registered-Key of local node of disk.

-cf diskId

It forcely deletes Reserved-Key and Registered-Key of local node of disk.
This is mostly used when access to disk is inavailable.

-r diskIdRegisters diskld-specified disk.

-l diskId

If node is yet to reserve, close the specified disk and reserve.   

-lf diskId

It forcelu closes specified disk and reserve, even node has been reserved.
Meaning, it takes over other reservation.

-hIt shows help of scsicmd.

no option

It shows the state information regarding disk reservation when there is no other option.

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Panel

The output of 'scsicmd' command from source node (C29043F13 is MAC Address of NIC from source node.)

Disk DUID(DeviceUniqueID)LetterPRReserved-KeyRegistered-Keys
0 CNononenone
1 DNononenone
200c0ffd796550000f38be34f01000000EYesnonenone
300c0ffd796550000138ce34f01000000FYesC29043F13*C29043F13*
400c0ffd7965500002e8ce34f01000000GYesnonenone

 

The output of 'scsicmd' command from target node (C29043F13 is MAC Address of NIC from source node.)

Disk DUID(DeviceUniqueID)LetterPRReserved-KeyRegistered-Keys
0 CNononenone
1 DNononenone
200c0ffd796550000f38be34f01000000EYesnonenone
300c0ffd796550000138ce34f01000000FYesC29043F13C29043F13
400c0ffd7965500002e8ce34f01000000GYesnonenone

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