Logical or Primary Partitions for storage?

Marine

Senior member
Jan 27, 2000
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You know how small really fast SCSI hard drives are and really expensive? Well, I had mine set up in RAID 1 and rapidly ran out of storage space. I bought two WD 120GB HDDs and after unsuccessfully flailing around with the onboard IDE RAID, I finally got my additional disks to work with the use of an Adaptec 1200a IDE RAID card and now have 240GB of fast storage. My OS remains on my U320 SCSI RAID array. The IDE array is for storage. After the process of creating the array, I had the opportunity to partition, format and designate the new array.

So, I divided it evenly, 120GB apiece into two partitions, what I thought would be logical drives for data storage. However, I must have been careless as I created one logical and one primary partition. They both work fine and I'm moving data off my SCSI array onto these partitions as planned.

But, which is best to use for storage -- logical or primary partitions? Is one faster or more stable than the other? I guess if I wanted to I could install a different OS on the primary partition, but I don't want to do that. Should I make both of the partitions logical drives? Is there any danger in leaving one as a primary drive? Or should they both be primary drives?

My OS (Win XP Pro) is on my SCSI array and I'm not going to add another OS on this machine, so I'm leaning toward deleting the primary partition on the IDE RAID and recreating it as a Logical drive. Is this the best thing to do? Bottom line: I'm looking for fast reliable storage, not a drive to host another OS. Which is better and safer, logical drives or primary drives? Thanks!

:eek:
 

Nothinman

Elite Member
Sep 14, 2001
30,672
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It doesn't matter. Logical partitions only exist to get around the limit of 4 primary partitions.