The array is the set of drives joined together. Inside the Disk Array, you can put one (or more) Logical Drives. The Logical Drives are what the Mac can detect. You are able to set the RAID level (0, 1, 1E, 10, 5, 6) when you create the Logical Drive.

1. Pegasus2 R4 Promise Utility For Mac Rebuild Raid Kit
2. Pegasus2 R4 Promise Utility For Mac Rebuild Raid Download

Feb 11, 2016 Promise dev support was able to recommend the following compatible drives up to 3TB (but not larger) on my legacy R4 unit., but just make sure you have the latest pegasus r4/r6 firmware update first (currently SR 2.44), you can do this on the empty chassis if you need too. 3tb drives (from current compatibility list-link below). PROMISE Technology is committed to providing high quality service and support to its customers. Our technical support is limited to PROMISE branded retail products. Different OEM manufacturers may have made unique modifications to the PROMISE hardware or software and they are responsible for supporting their products. May 05, 2014 Symptoms: The Pegasus is showing no problems; WebPAM or Promise Utility gives all green checkmarks, Disk Utility will show 'Promise RAID' volume as mounted and it will pass verify disk, but Finder still doesn't see the volume. You might be able to browse to your external volume directly at the Terminal command prompt, or with the Finder option.

1. Jul 31, 2013 If Pegasus Manual could be that clear and simple! I know technology, but frankly, after reading the manual almost from cover to cover, I couldn’t even get to activate the greyed Rebuild button frustrating. Now rebuilding a failed 3TB drive in a pegasus R4 RAID5 thanks to you. Smile coming back.
2. The Pegasus RAID from Promise Technology comes in two basic configurations, the R4 and the R6. The R4 has four drive bays and the R6 has 6 bays. With the R4 and R6 you have the option of having 1 TB drives or 2 TB SATA drives, for a total of 4 different price and storage options.

A disk array's maximum size is (the number of drives) multiplied by (the smallest drive). So if you tell the Pegasus to make an array out of 6 drives, 5 of which are 3TB and one of which is 2TB, then the total will be 12TB (6 x 2TB).

If you take a physical drive out and replace it with a larger drive, the Pegasus R will rebuild to the original dimensions of the array* and you will not be able to take advantage of the larger size unless you delete the array and make a new array. Keep in mind the maximum array size will still be limited by the smallest drive in the array.

The best way to increase the drives is to backup your files to a second Pegasus or another storage medium; replace all the drives at once; create a new array over the larger drives; create a new logical drive to take up the new larger array; format that in Disk Utility; then restore your files from backup.

Pegasus2 R4 Promise Utility For Mac Rebuild Raid Kit

For more information please consult the Wikipedia articles on 'RAID' and 'Standard RAID Levels'. We would be happy to take your questions over the phone as well, at Promise Technical Support, 408-228-1500.

*Arrays containing RAID-0 logical drives cannot be rebuilt onto a blank drive, as they have no redundant data for the other drives to check. For this reason, the loss of any drive in a RAID-0 logical drive will take the logical drive offline.

Joe Engledow, Promise Technical Support, http://support.promise.com

Pegasus2 R4 Promise Utility For Mac Rebuild Raid Download

Jan 23, 2014 9:07 AM