Changing the raid

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  • Last Post 13 December 2018
MARK AARONS posted this 12 December 2018

Just got a new Pegasus3 R6 24TB and it comes Raid 5 but I want to change it to Raid 6. I'm on a Mac.

I've checked the Product Manual and I gotta say it's not that obvious how to do it.

There isn't a heading that says CHANGE RAID SET UP for instance.

So just asking if anyone can point me in the right direction.

Oh, and should I wait for it to finish its initial synchronisation first?

Cheers.

Mark

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Pradeep Chidambaranath posted this 12 December 2018

Hi Mark,

By default the unit will be configured with RAID5 and when you connect the unit to the system, it automatically starts the synchronization process.

If you like to configure the unit with RAID6 then you have to delete the existing array and have to create a new array, once the array is created with RAID6 the unit will start the synchronization process. The synchronization process will take 12 hours to complete. Kindly make sure that the system doesn't go to sleep during the process.

Note: Please make sure to backup your data (if you have any) before deleting and recreating the Disk Array and Logical Drive.

Follow the below steps to delete Disk Array.

To delete a disk array:

1. Open Promise utility and click the padlock on the left bottom corner to unlock the utility.

Once the Utility is unlocked, do one of the following actions:

• From the Dashboard window, click the Disk Array link.
• From the Storage menu, choose Disk Array.

2. Mouse-over the disk array you want then click the Delete button.

3. In the Confirmation box, type the word “confirm” in the field provided and click the Confirm
button.

Note: Deleting the array will delete the logical drive as well. If you have any data on the unit, it will be deleted, so please back up all your data before deleting the array.

To create a disk array:

1. From the Dashboard menu, click the Disk Array link.

2. Click the Create Disk Array button.

3. Accept the defaults or make changes:

• Enter an alias in the Alias field
Maximum of 32 characters; letters, numbers, space between characters, and underline.
• Enable Media Patrol – Uncheck to disable on this array.
• Enable PDM – Uncheck to disable on this array.

4. In the Select Physical Drives diagram, click the drives to add them to your array.
The drive carriers turn blue when you click them. The physical drives’ ID numbers appear in the field below the diagram.

5. When you have finished your settings and choices, click the Submit button.
The new array appears in the list.

• If you are done creating disk arrays, click the Finish button.
• To create additional disk arrays, click the Create More button.

Once the disk array is created you can go have to create the Logical Drives. Follow the steps below to create a new Logical Drive.

To create a logical drive manually:

1. Do one of the following actions:
• Click the Logical Drive icon.
• From the Storage menu, choose Logical Drive.

2. Click the Create Logical Drive button.

3. Click the radio button of the disk array you want to use and click the Next button.

4. Accept the defaults or make changes:
• Optional. Enter an alias in the Alias field.
Maximum of 32 characters; letters, numbers, space between characters, and underline.
• Choose a RAID level.
The choice of RAID levels depends the number of physical drives in the disk array.
• In the Capacity field, accept the default maximum capacity or enter a lesser capacity and
size in MB, GB or TB.
Any remaining capacity is available for an additional logical drive.
• Choose a Stripe size.
64 KB, 128 KB, 256 KB, 512 KB, and 1 MB are available.
• Choose a Sector size.
512 B, 1 KB, 2 KB, and 4 KB are available.
• Choose a Read (cache) Policy.
Read Cache, Read Ahead, and No Cache are available.
• Choose a Write (cache) Policy.
Write Back and Write Through (Thru) are available.
The Write Cache is always set to WriteThru when the Read Cache is set to NoCache.
• For RAID 6 logical drives, choose a Codec Scheme from the dropdown menu.
P+Q and Q+Q are available.
• If you want the PROMISE Utility to format your logical drives, leave the Format box
checked.

5. Click the Add button.
The new logical drive appears on the list at the right.
If there is capacity remaining, you can create an additional logical drive. Pegasus supports up to 32 logical drives.

6. When you are finished, click the Submit button.
The new logical drive or drives appear in the logical drive list.

If you have any further question please feel free to contact us and we will be more than happy to help you.

Regards
Pradeep C

PROMISE Technology Inc. posted this 12 December 2018

@MARK AARONS

1. After you delete your array and logical drive:

https://kb.promise.com/thread/how-do-i-create-a-volume-on-a-pegasus/

MARK AARONS posted this 13 December 2018

Great. All done. Now synchronizing for the next 10 hours... again!

Cheers

M:)

MARK AARONS posted this 13 December 2018

Hey

The Pegasus just went to sleep while synchronizing!

My iMac was set to not sleep but it slept anyway!

Will this make a difference?

 

Also is there anyway of setting the Pegasus to not sleep. I don't think my old one went to sleep, but there seems to be a default on these new ones?

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