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тАО02-03-2003 10:54 PM
тАО02-03-2003 10:54 PM
DL360 mirror disk
May I add a mirror Disk to a Dl 360 without destroying data on the first disk . How?
It Consultant
2 REPLIES 2
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тАО02-04-2003 11:47 AM
тАО02-04-2003 11:47 AM
Re: DL360 mirror disk
Take a read of:
ftp://ftp.compaq.com/pub/supportinformation/techpubs/user_reference_guides/266328-001_rev1_us.pdf
You should be able to "migrate" the logical drive without data loss.
BE SURE TO MAKE A BACKUP JUST IN CASE!
The ACU Will let you know what you can accomplish without destroying data, so read each dialog box before accepting the changes.
******************************
Migrating RAID Level or Stripe Size
NOTE: Before migrating the stripe size, check that the available memory on the array accelerator is no smaller than the lowest common multiple of the total stripe sizes of the two different configurations.
To migrate to a different RAID level or stripe size:
1. Back up all data on the logical drive. Although migration is unlikely to cause
data loss, observing this precaution provides extra security. The backup data may
also be needed if the number of sectors needs to be increased (this fact will be
determined in step 8).
2. Verify that the array accelerator batteries (if present) are fully charged.
NOTE: The migration process takes about 15 minutes per gigabyte. A logical drive is
unavailable for any other process while it is undergoing migration, and no other logical drive in the system can be expanded, extended, or migrated during this time.
Configuring an Array
3. If your controller has a battery backed write cache, check the Controller Settings screen to confirm that the write cache is enabled.
4. Select the logical drive in the Logical Configuration View window.
5. Click Migrate in the Logical Drive box.
6. Change the RAID level by selecting the appropriate check box.
7. Change the stripe size (Table 7-3 gives the optimum stripe size for specific
situations).
8. Click Done to return to the ACU Main Configuration screen.
If you get a message stating that the number of sectors needs to be increased:
a. Delete the old logical volume.
b. Reconfigure the array as a new logical volume with the new fault-tolerance method and stripe size that you had selected.
c. Copy the backed-up data (from step 1) onto the new logical volume.
9. To save the new settings, click Controller on the menu bar and select Save Configuration.
ftp://ftp.compaq.com/pub/supportinformation/techpubs/user_reference_guides/266328-001_rev1_us.pdf
You should be able to "migrate" the logical drive without data loss.
BE SURE TO MAKE A BACKUP JUST IN CASE!
The ACU Will let you know what you can accomplish without destroying data, so read each dialog box before accepting the changes.
******************************
Migrating RAID Level or Stripe Size
NOTE: Before migrating the stripe size, check that the available memory on the array accelerator is no smaller than the lowest common multiple of the total stripe sizes of the two different configurations.
To migrate to a different RAID level or stripe size:
1. Back up all data on the logical drive. Although migration is unlikely to cause
data loss, observing this precaution provides extra security. The backup data may
also be needed if the number of sectors needs to be increased (this fact will be
determined in step 8).
2. Verify that the array accelerator batteries (if present) are fully charged.
NOTE: The migration process takes about 15 minutes per gigabyte. A logical drive is
unavailable for any other process while it is undergoing migration, and no other logical drive in the system can be expanded, extended, or migrated during this time.
Configuring an Array
3. If your controller has a battery backed write cache, check the Controller Settings screen to confirm that the write cache is enabled.
4. Select the logical drive in the Logical Configuration View window.
5. Click Migrate in the Logical Drive box.
6. Change the RAID level by selecting the appropriate check box.
7. Change the stripe size (Table 7-3 gives the optimum stripe size for specific
situations).
8. Click Done to return to the ACU Main Configuration screen.
If you get a message stating that the number of sectors needs to be increased:
a. Delete the old logical volume.
b. Reconfigure the array as a new logical volume with the new fault-tolerance method and stripe size that you had selected.
c. Copy the backed-up data (from step 1) onto the new logical volume.
9. To save the new settings, click Controller on the menu bar and select Save Configuration.
"Now is the only thing that's real!"
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тАО02-04-2003 11:49 AM
тАО02-04-2003 11:49 AM
Re: DL360 mirror disk
It depends on how the system is configured. There is a Smart Array controller in the system, so yes you could. But with the little knowledge of the system config, An answer is not available.
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