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8.1.9 Serverless backup commands
Serverless Backup is an application that allows data to be copied between two storage devices (Fibre
Channel disks, SCSI disks and SCSI tapes) with minimal intervention from a server.
Serverless Backup uses the Extended Copy
command compliant with T10/99-143rl to allow a
"copy manager" (the FibreBridge) to execute all
of the read and write operations necessary to
move data. Blocks of data are moved directly
from the Fibre Channel storage through the bridge
XCDevices
Allows the user to get information about the devices used in a particular Extended Copy command specified by the CmdNumber as
presented in the XCStatus CLI command (see below).
Limits: DeviceType displays SCSI device type
VendorId, Product Id, SerialNumber display SCSI inquiry data for each device
DataDirection specifies whether a device is a data source, a data destination or both.
Action: none
XCError
Retrieves any SCSI sense data returned by an Extended Copy command because of an error.
Limits: CmdNumber is the data returned by the XCstatus command (see below).
SCSI Status, SenseKey, ASC and ASCQ fields display the sense data returned by the Extended Copy command
If a device also returns sense data, the device's serial number will be displayed in the DeviceId field; its data will be displayed in the
DStat, DSK, DASC and DASCQ fields.
Any field that does not contain valid data will be filled in with 00.
Action: none
XCStatus
Polls the status of Extended Copy commands issued to the FibreBridge.
Limits: CmdNumber is unique identifier for a particular command.
ListId displays List ID specified in the CDB of the extended copy command.
HostId field displays 8-byte Node Name of FC host that issued Extended Copy command
Status indicates current state of Extended Copy command [Initializing|Active|Done|Error}
Transferred displays the amount of data transferred in megabytes.
Action: none
to SCSI tape or from SCSI storage through the
bridge to the SCSI tape, all at Fibre Channel and
SCSI speeds.
CLI commands are case insensitive (upper and
lower case allowed anywhere).
Commands generally follow a standard format:
[Get | Set] Command [Parameter 1 | Parameter 2] followed by
the return or enter key
Information: get XCDevices [CmdNumber]
Return: [lineCount]
DeviceType VendorID ProductID SerialNumber DataDirection
..
..
[SCSI type]
[VendID]
[ProdId]
Information: get XCError [CmdNumber]
Return: [lineCount]
SCSI status SenseKey ASC ASQ DeviceID DStat DSK DASC DASCQ
........... ... .
..........
. ..
xx
xx
xx
Information: get XCStatus
Return: [lineCount]
.....
CmdNumber ListID HostId
[CmdNumber] [xxxx] [host NN] [cmd status] [xxxxxxxx]
...
xxxxxxxxxxxxxxxx [DataDir]
..
..
.....
....
xx
[SerNum]
xx
xx
xx
.......
Status
Transferred (MB)
......
xx
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