RAID
Controller Utility from IBM
On RAID models, this utility is the only one that can discover and
configure the attached SCSI devices.
This utility comes on a bootable diskette which is shipped
with every RAID Server. Also, it can be rebuilt if necessary with
the Diskette Factory option of ServerGuide.
The IBM RAID utility allows you to configure disk arrays
as well as view the status of the arrays already defined. It provides
a graphical display of the defined arrays and provides diagnostic information
to assist you if a hard disk within the array malfunctions.
The common configuration tasks described here are:
View configuration
Low-level format of the disks
Change RAID Parameters
Defining a hot-spare drive
Creating a disk array
Defining logical drives
Set Write Policy
Initialize Array
Backup/restore
the configuration
After booting with the RAID Controller program diskette,
if more than one RAID adapter is installed, it will prompt you to select
which adapter you want to work with (see Figure 54). Otherwise, a
screen like the one in Figure 55 will appear.
Figure 54. RAID Configuration Program - Adapter Selection
IBM RAID Controller Configuration Ver 2.12
_______________________________
| Select Adapter
|
|______________________________|
| 1. Help
|
| 2. RAID Controller in slot 1 |
| 3. RAID Controller in slot 2 |
| 4. Exit
|
|______________________________|
Use the arrow keys to select the adapter you want to configure
and press Enter.
A screen like the one in Figure 55 will appear.
IBM RAID Controller Configuration Ver 2.12
Adapter in Slot 1
_______________________________
| Main Menu
|
|_______________________________|
|1. Help
|
|2. View configuration
|
|3. Create/delete Array
|
|4. Initialize/synchronize array|
|5. Rebuild device
|
|6. Advanced functions
|
|7. Drive information
|
|8. Exit
|
|_______________________________|
Drive Information
During this first step, we will verify that all the installed units
are recognized and available for future use. Select Drive Information
on the main menu. The following screen appears:
IBM RAID Controller Configuration Ver 2.12
Adapter in Slot 1
____________________________
___________ ___________
|
Drive Information |
| _________ | | _________ |
|____________________________|
||Ch 1|| ||Ch
2||
| _Bay | | _Bay
|
|| Array __ | || Array __ |
| _____ | | _____
|
|1 | | | |1 |
| |
| _____ | | _____
|
|2 | | | |2 |
| |
| _____ | | _____
|
|3 | RDY | | |3 | | |
| _____ | | _____
|
|4 | RDY | | |4 | | |
_______________________________________
| _____ | | _____
|
| Drive ID
IBM DFHSS2W 1717 | |5 | RDY
| |5 | | |
| Drive Capacity 2150MB
| | _____ | | _____
|
| Soft Error 0
| |6 | RDY | | |6 | | |
| Hard Error 0
| | _____ | | _____
|
| Misc Error 0
| |7 | CDR | | |7 | | |
|_______________________________| |________| |_________|
Figure 56. RAID Configuration Program - Drive Information
The columns on the right show any devices attached to each
channel on the adapter. The box on the left shows information about a specific
device. The unit whose information is displayed is highlighted on the right.
Use the up and down arrow keys to display the information
for other devices.
The RAID Utility shows device type and/or status for each
device which it recognizes. The devices may take on several states
which you may encounter when running the Utility.
Here is a list of indicators used along with a description
of each:
° CDR = A CD-ROM device.
° DDD = Defunct DASD device.
° FMT = DASD being formatted.
° HSP = DASD defined as a hot-spare Drive.
° OFL = DASD used to rebuild a defunct drive.
Intermediate state between DDD and ONL.
° ONL = DASD which has been assigned to an Array.
° RDY = DASD ready to use but not assigned to an array
or defined as hot-spare drive.
° TAP = A Tape Drive.
° UFM = Unformatted DASD. Requires an LLF before it
can be used.
Formatting
the Disks
If your DASD devices appear as UNF or if you have experienced
some problems with them, you can low-level format the disks. If your disks
appear as RDY, and you don't want to reformat, then you can skip over this
section.
To format a device:
1. From the main menu select Advanced Functions.
The following menu appears:
IBM RAID Controller
Configuration Ver 2.12
Adapter in Slot 1
_______________________________
|
Advanced Functions |
|_______________________________|
|1.
Help
|
|2.
Backup config. to diskette |
|3.
Restore config. to diskette |
|4.
Change write policy |
|5.
Format drive
|
|6.
Change RAID parameters |
|7.
Exit
|
|_______________________________|
Figure 57. RAID Configuration Program - Advanced Functions
Menu
2. Select Format drive.
3. With the spacebar, select devices to format.
They appear as FMT.
4. Press Enter to format the selected drives.
Notes
All the desired devices may be selected and formatted
together to reduce the time necessary for formatting. The operation can
be time consuming. It takes approximately 20 minutes to format six 2GB
disks attached to the same adapter.
IBM RAID Controller Configuration Ver 2.12
Adapter in Slot 1
_______________________________
___________ ___________
|
Advanced Functions | | _________ |
| _________ |
|_______________________________|
||Ch 1|| ||Ch
2||
|1. Help
| | _Bay | | _Bay
|
|2. Backup
config. to diskette | || Array __ | || Array __ |
|3. Restore
config. to diskette | | _____ | |
_____ |
|4. Change
write policy | |1 |
| | |1 | | |
|5. Format
drive
| | _____ | | _____
|
|6. Change
RAID parameters | |2 |
| | |2 | | |
|7. Exit
| | _____ | | _____
|
|_______________________________|
|3 | FMT | | |3 | | |
| _____ | | _____
|
|4 | FMT | | |4 | | |
| _____ | | _____
|
|5 | FMT | | |5 | | |
| _____ | | _____
|
|6 | FMT | |6 | |
|
| _____ | | _____
|
|7 | | | |7 |
| |
|___________| |___________|
Figure 58. RAID Configuration Program - DASD Formatting
Change
RAID Parameters
The panel for changing RAID parameters looks like Figure
59.
IBM RAID Controller Configuration Ver 2.12
Adapter in Slot 1
_______________________________ ___________
___________
| Advanced Functions
| | _________ | | _________ |
|_______________________________| ||Ch
1|| ||Ch 2||
|1. Help
| | _Bay | | _Bay
|
|2. Backup Config. to Diskette | || Array __ | || Array
__ |
|3. Restore Config. to Diskette | | _____
| | _____ |
|4. Change Write Policy
| |1 | | | |1 |
| |
|5. Format Drive
| | _____ | | _____
|
|6. Change RAID parameters | |2 |
| | |2 | | |
|7. Exit
| | _____ | | _____
|
|_______________________________| |3 | RDY | | |3 |
| |
________ _________ _________
______ | _____ | |
_____ |
|Stripe | |Rebuild | |Parity |
|Read | |4 | RDY | | |4 |
| |
|Unit | |Priority | |Placement| |Ahead
| | _____ | | _____
|
|Size | | High | |
RA | | On | |5 | RDY | |
|5 | | |
|_______| |_________| |_________| |______|
| _____ | | _____
|
| 8K | |1 Equal | |1
RA | |1 On | |6 | RDY | | |6
| | |
| 16K | |2 High | |2
LS | |2 Off | | _____ |
| _____ |
| 32K | |3 Low | |_________|
|______| |7 | | | |7 |
| |
| 64K | |_________|
|___________| |___________|
|_______|
Figure 59. RAID Configuration Program - Change RAID parameters
The following fields are configurable:
Stripe Unit Size: The stripe unit
size is the amount of data written on a given disk before writing on the
next disk. This parameter should be chosen such that the stripe unit size
is close to the size of the system I/O requests. The default is set to
8KB.
Warning! Once data is stored
in the logical drive, the stripe unit cannot be changed without destroying
data in the logical drives.
Rebuild Priority: This parameter
sets the priority of the execution order of the rebuild I/O requests with
respect to the system I/O requests.
Note: Rebuild priority can be changed
without destroying data.
Equal - The rebuild I/O request and system
I/O requests get equal priority in the execution order.
High - Rebuild I/O requests get a higher
priority than system I/O requests. On a heavily loaded system (with a high
rate of system I/O requests), the high-priority rebuild can significantly
reduce the disk rebuild time at the expense of degraded handling of I/O
requests.
Low - Rebuild I/O requests can execute
only if there is no pending system I/O requests. On a moderate to heavily
loaded system, low rebuild priority will significantly increase the disk
rebuild time and gain higher system performance. (Ed.
I'd say that you would only want busmasters in this system to reduce system
I/O...)
Parity Placement: Parity placement
defines how parity is placed in the disk array with respect to the data.
The following figure shows the differences between Left Symmetric and Right
Asymmetric parity placement.
AAA, BBB, CCC and so on are the data stripe units; PP1-3
are the corresponding parity.
Right Asymmetric
(RA) Left Symmetric
(LS)
Disk Disk Disk
Disk Disk Disk
Disk Disk
1
2 3 4
1 2 3 4
PP0 AAA
BBB CCC
AAA BBB CCC PP0
DDD PP1
EEE FFF
EEE FFF PP1 DDD
GGG HHH
PP2 III
III PP2 GGG HHH
JJJ KKK
LLL PP3
PP3 JJJ KKK LLL
The default value is Right Asymmetric. In some situations,
you may want to try Left Symmetric to improve performance.
Note: Once a
parity placement scheme is chosen and data is stored in the logical drives,
it cannot be changed without destroying data in the logical drives.
Read-Ahead: Normally
the IBM SCSI-2 Fast/Wide Streaming RAID adapter transfers data from a disk
to its local cache in steps of stripe unit size. This provides excellent
overall performance when workloads tend to be sequential. However,
if the workload is random and system I/O requests are smaller than stripe
unit size, reading ahead to the end of the stripe unit will result in a
wasted SCSI bus bandwidth and wasted disk utilization.
When Read-Ahead is set to OFF, the size of data transfer
from the disk to the local cache is equal to the system I/O request size,
and no read-ahead to the end of the stripe unit size is performed.
Note: The Read-Ahead
setting can be modified without destroying data in a logical unit.
Defining a
Hot-Spare Disk
After selecting Create/delete array from the main menu of the IBM RAID
Configuration program, the following screen appears:
IBM RAID Controller Configuration Ver 2.12
Adapter in Slot 1
____________________________
___________ ___________
| Create/Delete Array
| | _________ | | _________ |
|____________________________|
||Ch 1|| ||Ch
2||
|1. Help
| | _Bay |
| _Bay |
|2. Define hot-spare drive |
|| Array __ | || Array __ |
|3. Delete disk array
| | _____ | |
_____ |
|4. Create disk array
| |1 | | |
|1 | | |
|5. Define Logical drive
| | _____ | |
_____ |
|6. Format drive
| |2 | | |
|2 | | |
|7. Exit
| | _____ | |
_____ |
|____________________________|
|3 | RDY | | |3 | | |
| _____ | | _____
|
|4 | RDY | | |4 | | |
| _____ | | _____
|
|5 | RDY | | |5 | | |
| _____ | | _____
|
|6 | RDY | |6 | |
|
| _____ | | _____
|
|7 | | | |7 |
| |
|___________| |___________|
Figure 60. RAID Configuration Program - Create/Delete
Array Menu
1. Select Define hot-spare drive. The cursor
becomes active in the Bay/Array selection list.
2. Use the up and down arrow keys to select the
RDY (ready) drive to be used as a hot-spare and press Enter. The RDY status
changes to HSP (hot-spare). Figure 61 shows an example where a hot-spare
disk has been defined.
3. Press Esc to validate.
Notes:
1. The hot-spare drive is not associated with any
array. If more than one array is defined, you need only 1 hot-spare
drive for all the arrays.
2. If the disks have different sizes, the hot-spare
drive must be the largest.
IBM RAID Controller Configuration Ver 2.12
Adapter in Slot 1
____________________________
___________ ___________
|
Create/Delete Array | | _________ |
| _________ |
|____________________________|
||Ch 1|| ||Ch
2||
|1. Help
| | _Bay |
| _Bay |
|2. Define
hot-spare drive | || Array __ |
|| Array __ |
|3. Delete
disk array |
| _____ | | _____
|
|4. Create
disk array |
|1 | | | |1 |
| |
|5. Define
Logical drive | |
_____ | | _____ |
|6. Format
drive
| |2 | | |
|2 | | |
|7. Exit
| | _____ | |
_____ |
|____________________________|
|3 | HSP | | |3 | | |
| _____ | | _____
|
|4 | RDY | | |4 | | |
| _____ | | _____
|
|5 | RDY | | |5 | | |
| _____ | | _____
|
|6 | RDY | |6 | |
|
| _____ | | _____
|
|7 | | | |7 |
| |
|___________| |___________|
Figure 61. RAID Configuration Program - Hot-Spare Disk Definition
Creating a
Disk Array
1. Select Create/Delete Array from the Main Menu.
2. Select Create Disk Array from the Create/Delete
Array menu and press Enter.
3. Using the Enter key, select each drive you want
included in the array
you are now defining. The devices
will be highlighted as they are
selected and the status changes
from RDY to ONL (online). Also the
array ID, (A for the first one,
then B and so on) appears behind the
drives that make up the array.
4. Press Esc to validate.
IBM RAID Controller Configuration Ver 2.12
Adapter in Slot 1
___________ ___________
| _________ | | _________ |
||Ch 1|| ||Ch
2||
| _Bay | | _Bay
|
|| Array __ | || Array __ |
| _____ | | _____
|
|1 | | | |1 |
| |
| _____ | | _____
|
|2 | | | |2 |
| |
| _____ | | _____
|
|3 | HSP | | |3 | | |
| _____ | | _____
|
_______________ ___________________________
|4 | ONL | A| |4 | | |
|Array Arrays | Log Size RAID
Date | | _____ | |
_____ |
|ID Size (MB)| Drv (MB) Level
Created | |5 | ONL | A| |5 | | |
|_______________|__________________________| |
_____ | | _____ |
| A 6450
|
| |6 | ONL A| |6 | | |
|
|
| | _____ | | _____
|
|
|
| |7 | | | |7 |
| |
|_______________|__________________________| |___________|
|___________|
Figure 62. RAID Configuration Program - Disk Array Creation
5. Press any key to return.
Now that an array has been defined, it is necessary to
create the logical drives on this array. Logical drive definitions
for created arrays must be done before exiting the Create/Delete array
menu.
Notes:
1. Up to four arrays can be defined per controller.
2. An array can be defined across the two channels
of one controller.
3. You cannot define an array across two controllers.
4. For maximum performance and configuration flexibility,
all installed drives should be configured into a single-disk array. Where
data separation is desired, use separate logical drives on the same disk
array. Each of these logical drives will appear as a separate physical
disk to software programs like FDISK, and may be further divided into logical
partitions. With this approach, if additional physical drives are added
at a later date, they can be easily added as a second array without reconfiguring
the original drives.
Defining
Logical Drives
1. Select Define logical drive from the Create/Delete Array
menu. The
following screen appears:
IBM RAID Controller Configuration Ver 2.12
Adapter in Slot 1
____________________________ ___________
___________
| Create/Delete Array |
| _________ | | _________ |
|____________________________| ||Ch
1|| ||Ch 2||
|1. Help
| | _Bay | | _Bay
|
|2. Define hot-spare drive | || Array __ |
|| Array __ |
|3. Delete disk array |
| _____ | | _____
|
|4. Create disk array |
|1 | | | |1 |
| |
|5. Define Logical drive | |
_____ | | _____ |
|6. Format drive
| |2 | | | |2 |
| |
|7. Exit
| | _____ | | _____
|
|____________________________| |3 | HSP | | |3
| | |
| _____ | | _____
|
_______________ ___________________________
|4 | ONL | A| |4 | | |
|Array Arrays | Log Size RAID
Date | | _____ |
| _____ |
|ID Size (MB)| Drv (MB) Level
Created | |5 | ONL | A| |5 | | |
|_______________|__________________________| |
_____ | | _____ |
| A 6450
|
| |6 | ONL A| |6 | | |
|
|
| | _____ | | _____
|
|
|
| |7 | | | |7 |
| |
|_______________|__________________________| |___________|
|___________|
Figure 63. RAID Configuration Program - Logical Drive
Definition
2. Highlight array to be defined and press Enter.
The define logical drive pop-up window appears.
IBM RAID Controller Configuration Ver 2.12
Adapter in Slot 1
__________ ____________________________
___________ ___________
|Select | |
Create/Delete Array | | _________ | | _________ |
|RAID | |___________________________|
||Ch 1|| ||Ch
2||
|Level | |1. Help
| | _Bay | | _Bay
|
|__________| |2. Define hot-spare drive
| || Array __ | || Array __ |
|1. RAID-5 | |3. Delete disk array
| | _____ | | _____
|
|2. RAID-0 | |4. Create disk array
| |1 | | | |1 |
| |
|3. RAID-1 | |5. Define Logical drive
| | _____ | | _____
|
|__________| |6. Format drive
| |2 | | | |2 |
| |
|7. Exit
| | _____ | | _____
|
|___________________________| |3 | HSP | | |3 |
| |
| _____ | | _____
|
_________________________________________
|4 | ONL | A| |4 | | |
|Array Arrays | Log Size RAID
Date | | _____ |
| _____ |
|ID Size (MB)| Drv (MB) Level Created
| |5 | ONL | A| |5 | | |
|_______________|_________________________|
| _____ | | _____
|
| A 6450
|
| |6 | ONL A| |6 | |
|
|
|
| | _____ | | _____
|
|
|
| |7 | | | |7 |
| |
|_______________|_________________________|
|___________| |___________|
Figure 64. RAID Configuration Program - Logical Drive
Definition - Array Selection
Notes:
a. If only one hard disk
has been assigned to the array, RAID level 0 will be automatically assigned
and the pop-up menu does not appear.
b. If only two hard disks
are assigned to the array, RAID-5 is not selectable, since at least three
hard disk drives in an array are necessary to assign RAID level 5 to one
of the logical drives.
c. Define any RAID 5 logical
drives first. This is because the first logical drive seen will be
the first RAID 5 drive created and will be assigned drive letter c:.
In this way, the operating system will be installed on a RAID 5 drive.
d. The three RAID levels
(0, 1 and 5) can be mixed in the same array allowing the user to chose
the optimum RAID level for each data type.
e. It is, however, not recommended
to mix RAID 0 with the others levels if a hot-spare drive is defined, since
an automatic rebuild would not be possible.
3. Assign the RAID level wanted and press Enter.
The logical drive size pop-up
menu shows the space available in this array for logical drives.
RAID 5 has been chosen in this
example.
IBM RAID Controller Configuration Ver 2.12
Adapter in Slot 1
___________ ____________________________
___________ ___________
|Enter Size || Create/Delete
Array | | _________ | | _________ |
|of Logical ||____________________________|
||Ch 1|| ||Ch
2||
|Drive, (MB)||1. Help
| | _Bay | | _Bay
|
|___________||2. Define hot-spare drive
| || Array __ | || Array __ |
|: 4300 ||3. Delete disk
array | | _____
| | _____ |
|___________||4. Create disk array
| |1 | | | |1 |
| |
|5. Define Logical drive | |
_____ | | _____ |
|6. Format drive
| |2 | | | |2 |
| |
|7. Exit
| | _____ | | _____
|
|____________________________| |3 | HSP | | |3 |
| |
| _____ | | _____
|
_______________ ___________________________
|4 | ONL | A| |4 | | |
|Array Arrays | Log Size RAID
Date | || _____ | |
_____ |
|ID Size (MB)| Drv (MB) Level
Created ||5 | ONL | A| |5 | |
|
|_______________|___________________________||
_____ | | _____ |
| A 6450
|
||6 | ONL A| |6 | | |
|
|
|| _____ | | _____
|
|
|
||7 | | | |7 |
| |
|_______________|___________________________||___________|
|___________|
Figure 65. RAID Configuration Program - RAID Level Selection
4. Enter the size needed, within the limitation (for
example 400).
5. Press Enter to confirm.
6. As shown in Figure 66, information about the
new logical drive appears in the logical drive list.
IBM RAID Controller Configuration Ver 2.12
Adapter in Slot 1
____________________________ ___________
___________
| Create/Delete Array |
| _________ | | _________ |
|____________________________| ||Ch
1|| ||Ch 2||
|1. Help
| | _Bay | | _Bay
|
|2. Define hot-spare drive | || Array __ |
|| Array __ |
|3. Delete disk array |
| _____ | | _____
|
|4. Create disk array |
|1 | | | |1 |
| |
|5. Define Logical drive | |
_____ | | _____ |
|6. Format drive
| |2 | | | |2 |
| |
|7. Exit
| | _____ | | _____
|
|____________________________| |3 | HSP | | |3
| | |
| _____ | | _____
|
_______________ __________________________
|4 | ONL | A| |4 | | |
|Array Arrays | Log Size RAID
Date | | _____ | |
_____ |
|ID Size (MB)| Drv (MB) Level Created
| |5 | ONL | A| |5 | | |
|_______________|_________________________| |
_____ | | _____ |
| A 6450
| A0 400 RAID-5 08/24/95 | |6 | ONL A| |6 |
| |
|
|
| | _____ | | _____
|
|
|
| |7 | | | |7 |
| |
|_______________|_________________________| |___________|
|___________|
Figure 66. RAID Configuration Program
- Size Definition
7. Repeat the procedures for the other logical drives
and arrays.
Note
It is not necessary to define multiple logical drive of
same RAID level. You can partition these logical drives the same
way you partition a real disk when you install the operating system.
8. Select Exit to leave this menu.
9. Select Yes to save the changes.
Figure 67 shows an example completed
array definition which includes two logical drives: one 400MB RAID-5
array and one 2925MB RAID-1 array.
IBM RAID Controller Configuration Ver 2.12
Adapter in Slot 1
___________ ___________
| _________ | | _________ |
||Ch 1|| ||Ch
2||
| _Bay | | _Bay
|
|| Array __ | || Array __ |
| _____ | | _____
|
|1 | | | |1 |
| |
| _____ | | _____
|
|2 | | | |2 |
| |
| _____ | | _____
|
|3 | HSP | | |3 | | |
| _____ | | _____
|
_______________ ___________________________
|4 | ONL | A| |4 | | |
|Array Arrays | Log Size RAID
Date | | _____ | |
_____ |
|ID Size (MB)| Drv (MB) Level
Created | |5 | ONL | A| |5 | | |
|_______________|__________________________| |
_____ | | _____ |
| A 6450
| A0 400 RAID-5 08/24/95 | |6 | ONL A| |6
| | |
|
| A1 2925 RAID-1 08/24/95 | | _____ |
| _____ |
|
|
| |7 | | | |7 |
| |
|_______________|__________________________| |___________|
|___________|
Figure 67. RAID Configuration Program - Result
Setting the
Write Policy
Now that the logical drives have been created, you may wish to change
the write policy for these drives.
If you want to change the write policy:
1. Select Advanced functions from the main menu.
2. Select Change write policy.
3. Use the up and down arrow keys to select the
logical drive.
4. Press Enter to toggle the write policy.
The different options are:
WB for Write-Back: In the write-back mode, the completion
status is sent before the data is actually written to
the drives. While this mode will yield higher performance, it is
critical to protect the DASD power to ensure the write operations actually
complete, since the processor thinks the operation has been completed.
WT for Write-Through: In write-through mode, the data
is written directly to disk and no acknowledgement is sent until the operation
is complete.
Initializing
the Array
If you are using RAID Level 1 or 5, you must select Initialize logical
drives for proper operation. This sets the drive to a predetermined state.
Any data existing on the drive is overwritten with zeros, and the corresponding
parity is initialized to the correct value.
1. Select Initialize/synchronize array from the main menu.
2. Select Initialize logical drive.
3. Select the logical drive you want to initialize by pressing
the spacebar.
4. Press Enter to start the initialization.
5. Select Yes to confirm.
Backup/Restoring
the Configuration
Attention!
The array configuration is stored on EEPROM on the adapter.
It is very important to back up this configuration on a diskette.
If the adapter ever needs to be replaced, the configuration can be restored
to the new adapter without the need to reconfigure the array. Otherwise,
the array would need to be redefined and your data would be lost.
This is important not only at installation
time but whenever the array configuration changes. For example, if
a hot-spare drive is defined and subsequently, a drive fails and the hot-spare
is enabled, the array configuration is updated. If you are unable
to restore the configuration exactly as it was before, it would have the
same effect as re-initializing the arrays: all data would be lost. We strongly
recommend that the configuration be backed up.
To back up the configuration:
1. Select Advanced functions from the Main Menu.
2. Select Backup config. to diskette.
3. Press Enter.
4. Enter the filename you want for backup (config
is the default).
5. Insert a diskette to hold the backup file.
6. Press Enter.
To restore the configuration:
1. Select Advanced functions from the Main Menu.
2. Select Restore config. from diskette.
3. Press Enter.
4. Enter the filename you used for backup.
5. Insert the diskette used for backup.
6. Press Enter.
A screen like the one in Figure
68 will appear. This shows you the date when the backup was performed.
IBM RAID
Controller Configuration Ver 2.12
Adapter in Slot 1 (2.14)
_________
_______________________________
| Confirm |
| Advanced Functions
|
|_________|
|_______________________________|
| 1. No |
|1. Help
|
| 2. Yes |
|2. Backup config. to diskette |
|_________|
|3. Restore config. to diskette |
|4. Change write policy
|
|5. Format drive
|
|6. Change RAID parameters |
|7. Exit
|
|_______________________________|
______________________________________________
| File backed up on Aug 24, 1995 at 18:33:37 |
|______________________________________________|
Figure 68. RAID Configuration Program - Advanced Functions
Menu
7. Select Yes to confirm.
|