Differences between version 7 and predecessor to the previous major change of SoftwareRaidVsHardwareRaid.
Other diffs: Previous Revision, Previous Author, or view the Annotated Edit History
| Newer page: | version 7 | Last edited on Monday, March 22, 2004 9:09:13 pm | by StuartYeates | Revert |
| Older page: | version 4 | Last edited on Monday, March 22, 2004 10:24:11 am | by GerwinVanDeSteeg | Revert |
@@ -3,12 +3,15 @@
One persons opinion:
<yem> gotta rebuild this mail server and i have now sworn off kernelraid
<jsr> Ah, then ebay have some 2-channel units for, like, US$50
<Remosi> why?
- <yem> Remosi: its nice if you don't want to spend any money. but it can be a pain to sort out the lilo issues if you have to replace a drive or shift the drives to another box
+ <yem> Remosi: its nice if you don't want to spend any money. but it can be a
+
pain to sort out the lilo issues if you have to replace a drive or shift the
+
drives to another box
<Remosi> ahh excellent point
* Remosi goes and wiki's the answer
- <yem> the existing mailserver has hda and hdc in raid1. when i move those drives to another box (same channels, etc) it wont boot
+ <yem> the existing mailserver has hda and hdc in raid1. when i move those
+
drives to another box (same channels, etc) it wont boot
<Remosi> hmm
<Remosi> I wonder why
<yem> yeah
<yem> nice while it works..
@@ -31,12 +34,18 @@
the configuration of software RAID.
GerwinVanDeSteeg's opinion:
-Finding the correct RAID card for your distribution can also be tricky.
+Finding the correct [
RAID]
card for your distribution can also be tricky.
Software RAID is not too difficult to manage depending on your choice of
distribution. Some of the more "user friendly" distros (Read RedHat,
-Fedora) come with an install process capable of installing the machine
+[
Fedora]
) come with an install process capable of installing the machine
on a SoftwareRaid ensuring there is no fuss whatsoever.
I've setup many systems with SoftwareRaid and HardwareRaid and found that
if you've got the wrong card or driver things don't always work the way
you want.
+
+DanielLawson's opinion:
+
+I've got servers running software and hardware IDE RAID. I've not spent a lot of time spent a lot of time benchmarking them, but I've heard a number of reports suggesting that most hardware [IDE] RAID 0 or RAID 1 implementations are basically crap. To get a decent RAID 0 or RAID 1 card still cost a fair bit last time I looked, and doesn't neccesarily offer many benefits (specially if they have binary drivers, or only have drivers for some kernels, etc). On the other side of things, I also have a server with a 4 port 3Ware SATA RAID0/1/5 card in it, running a 360 GB RAID5 array. It was very painless to set up, and performance is good - as you'd expect. I've not tested software RAID 5 to compare however. If you can afford to drop a thousand dollars on a raid controller, then you get what you pay for :)
+
+See also: [Software], [Hardware]
