hp ml530 raid 10 two disks?

SteveS

SteveS

SteveS

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i am building a ML350, i have two sas drives which i was just going to mirror. the server gives only RAID10... ok fine... but how does it do this on two disks??
 
RAID10 is a stripe of mirrors, so you need at least 2 mirror pairs (eg 4 disks) to use it.
You need RAID1, sure you dont have any options (I've seen controllers list it as RAID0+1, but when implemented with 2 disks, you get a mirror)
 
all it says is raid 10, not even 1+0,. not installed an OS on it yet, pending media...

the size of the array is a full 1 disk size, 69gb (73gb disk)
 
Raid10 will give you a mirror with the 2 disks, infact its most probably already mirrored which is why you can see 69gb of space
 
but then why is it called raid 10 and not raid1, form googling, it says u can have raid 10 on two disks... so i duno what its doing
 
SteveS said:
but then why is it called raid 10 and not raid1, form googling, it says u can have raid 10 on two disks... so i duno what its doing
Click to expand...

I think its just to simplify things for people, as RAID10 and RAID1 are very much related.
 
just without the parity... if someones setting up a server i would have thought they would have a rough idea.. so this seems a silly way of expressing it,... so no parity is being done here?
 
Yes, in that case! RAID10 is almost an extension to RAID1. I can kind of see why they've done it that way but in their effort to avoid confusing people who dont know what they're doing, they confuse the people who do!
 
I remember seeing this in an hp ml350 some years back.

Will just do a RAID1 if 2 disks present.

If you have 4 then it will create mirror across 2 RAID0 stripes.

If one disk in the stripe fails then will move across to the mirrored system allowing you to replace the failed drive.
 
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