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Dell poweredge servers suck

S

st4rk

Gawd
Joined
Sep 19, 2003
Messages
1,013
I created a "container" in a raid 5 set with a whopping 3 8gb drives!!! We're talking breaking technology here, so cool that it has to "scrub" the container before I can use it! After 10 minutes it's only 15% done! Sweet!
 
woah there buddy..
There are quite a few of us that have had no problem with our PE's.

I'm guessing you're using a PERC1 or 2 if the drives are only 9Gb, correct?
That's not exactly new technology..
I've got 6 PERC4 DC's in a small cluster here and they are quite impressive.

Almost all RAID controllers need to initialize or 'scrub' the array before they let you use it. But there is often a background initialization available.
 
takes me all day to initialize my RAID 5
6 x 40GBs PATA

Id hate to think what 250GB drives would be like :p
 
Ice Czar said:
Id hate to think what 250GB drives would be like :p
Click to expand...
6 1/2 hours for 7 x 300Gb maxtor's in RAID 5 on a 3Ware 7500-8 to rebuild the 1.8Tb array. Holding about 1.1Tb of data.
 
I always just go ahead and install the OS while it scrubs -- the scrub will continue in the background. I've never had any problems. Anything you write to disk is going to get the parity information set correctly. When the scrub comes around to those blocks, they're already set correctly, so it doesn't have to change anything. Sure, something could go wrong, but I've never had issues. I've got 12 racks full of PowerEdge servers, for what it's worth...

RAID5 isn't known for blazing write performance. The scrub is very write intensive, and the cache on the RAID card isn't going to help out there. It's similar to having to low level format all 3 drives. It's just going to take a while.
 
*The technique in the following post is not recommended for use on important data*

Usually if I'm in a hurry to get a RAID 5 array built or rebuilt, if you have a higher end controller with onboard cache, there's usually a (somewhat hidden) method of changing the cache mode from write through to write back. Using this method I've gotten a Dell PERC/4DC (Really an LSI Megaraid U320-2) to build a 14 disk 900GB array in less than an hour...

Of course, this is more meant for the lab environment and testing and is pretty dangerous to do with actual data, but it is possible :)
 
unless the data is on another SAN node somewhere

but then most of use dont have such toys :p
 
this is an ancient poweredge, it's a freakin goliath of a machine, and loud as hell. the hard drives are louder than the case fans.

on our compaq dl380 servers when i setup the raid 5 arrays i could start using them immediately and they initialized pretty fast. 6 120gb ultra320 hd's in raid 5.
 
Is the PE white?
The Proliant comes stock with a Smart Array 5i, of course it's going to be faster :)
 
I have all types of PE servers from 1550 to 6650 and they all run like a champ!
The PERC cards work great and are quite speedy.

>Br@d
 
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