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Do hard drives in RAID need to be identical?
Must hard drives in a RAID array be identical? No. It is perfectly valid to use hard drives from different manufacturers, model numbers, sizes, and rotational speed (spindle speed or RPM).
Do all drives have to be the same for RAID?
The only absolute requirement for matching drive specs in a RAID 10 array is that the drives must be of the same architecture, e.g., all SAS or SATA.
How many drives can you have in RAID 1?
Comparison
| Level | Description | Minimum number of drives |
|---|---|---|
| RAID 0 | Block-level striping without parity or mirroring | 2 |
| RAID 1 | Mirroring without parity or striping | 2 |
| RAID 2 | Bit-level striping with Hamming code for error correction | 3 |
Can you RAID 2 different hard drives?
You can mirror more than one drive. It is called RAID10 because it is RAID1 (mirrored) and RAID0 (striped). RAID1 does NOT remove the need for backups. It will protect against a drive failure, but won’t protect against user error, software error, virus wipeout, etc.
Is it worth using RAID?
RAID is extremely useful if uptime and availability are important to you or your business. Backups will help insure you from a catastrophic data loss. But, restoring large amounts of data, like when you experience a drive failure, can take many hours to perform.
Can you RAID 1 with 3 drives?
RAID 1 configuration can be done with 2 HDDs. If your server hard disks are hot swap what you can do just have a 3rd hard drive the same capacity as the RAID1 and while is working just swap one of the hard drives with the 3rd one.
How many drives are needed for RAID 0?
The number of drives needed to create a RAID set depends on the RAID level you want to use. You can use a single drive to create an Enhanced JBOD set, two drives to create a RAID 0 or RAID 1 set, three or four drives to create a RAID 0 or RAID 5 set, or four drives to create a RAID 0+1 set. RAID Utility User Guide 9
How to assign a spare drive to RAID 0?
Use unassigned drives as spares: Reserves any drive not selected for the RAID set as a spare that will be used if a drive in the set fails. You can’t assign a spare to a RAID 0 or Enhanced JBOD set. 5 Click Create. For information about RAID levels, see “About RAID Levels” on page 16. Creating a Volume
How do I add a disk to a raid set?
Select the checkboxes of the disks you want to include in the set. For each disk, click the pop-up menu in the Role column and choose “RAID slice” or “Spare” to designate the disk as a standard member or spare in the set, then click Next. Enter a name for the RAID set in the RAID Name field.
How to create a volume in raid utility?
To create a RAID volume, you use RAID Utility to format space available on a RAID set. To create a volume: 1 In RAID Utility, select a RAID set in the left column and click Create Volume. 2 Type a name for the volume. 3 Choose a volume format from the pop-up menu.