Good bunch of data!<br><br>OK. so the 3ware is the first drive. RHEL will try to make that the boot drive as that's most likely the way the BIOS is setup. But your's is likely different<br>The 2 WD drives you want as a software RAID1 and the 3ware drives for data drives.<br>
<br>My way of this:<br>
<br>During drive selection choose sdb for MBR/boot drive<br>at the partitioning screen during install: delete ALL partitions.<br>create a 500MB part on sdb (WD1) as type software RAID<br>repeat for sdc.<br>create 1/2 swap on WD1<br>
repeat for WD2<br>create new RAID device from them as type 1 and mounted at /boot<br>create LVM PV on remaining WD1<br>repeat for WD2<br>create LVM VG from those two partitions<br>setup / on new VG<br>create partition on SDA/3ware for data and make a mount point. (If it's not in the drop down list, the first boot will not mount it, go in and create the missing mount tree parts and 'mount -a' will succeed. Typical local system data is in /opt or /var on RHEL)<br>
<br>The "official" RHEL way is put swap in the LVM container so it can be grown if more RAM is added later. It makes sense but I prefer to have swap managed only by swap. Putting it on two spindles makes for a nice speedup if used and disaster if one drive fails. Putting swap on software RAID1 drives in an LVM is a write speed hit but a no-crash setup on swap read.<br>
<br>A complicated swap setup I once was involved in: 3 drives, 6 partitions total, 2 per drive. Each of the pairs was part of a mirror with the other two. So sda1/sdb1, sda2/sdc2, sdb2/sdc1 were mirror pairs. Those 3 RAID1s were then swap1, swap2, swap3. Swap will auto-stripe across multiple partitions (so NEVER use two parts on same drive!). As RAID1 will allow for asyncronous writes, each full strip was done in two steps, first with first stripe write controlled by RAID, the second by the RAID process itself to sync the drives. A new write take precedent over a sync write. So a software RAID 10 on swap.<br>
<br><div class="gmail_quote">On Wed, Aug 10, 2011 at 1:52 PM, Greg Clifton <span dir="ltr"><<a href="mailto:gccfof5@gmail.com">gccfof5@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
When I did the initial install, the installer saw the 3Ware mirror set as the primary drive and wanted to install there, I told it to install to the WD drives and then went with defaults. I am an amateur at this, so I probably hosed something but when I started over and chose install it read the existing install and shows the following:<div>
<br></div><div>SDA 953663MB AMCC [i.e. 3Ware] 9650Se-2LP disk</div><div>SDB 239422 ATA WDC WD2503ABYX-0</div><div>SDC 239422 ATA WDC WD2503ABYX-0</div><div><br></div><div>LVM Groups 00 14320320MB</div><div> Logvol 00 / ext3 1426368</div>
<div> Logvol 01 swap 5952Mb</div><div><br></div><div>Hard Drives</div><div>/dev/sda1 volgroup 00 LVM PV 953663MB Start 1 End 121575</div><div>/dev/sdb1 /dev/sdb1 / boot ext 3 101MB Start 1 End 13</div><div>/dev/sdb2 volgroup 01 LVM PV 239319MB Start 14 End 30522</div>
<div>/dev/sdc1 volgroup 00 LVM PV 239429MB Start 1 End 30522</div><div><br></div><div>I do recall there used to be a lot of trouble getting software RAID running off the motherboard controllers under Linux. Is it possible that we need a driver for this Intel SATA controller that is not on the install disc (BTW the machine is not plugged into the internet at this time, static IPs here and I'm not sure how to configure that during the install)?</div>
<div><div></div><div class="h5">
<div><br><br><div class="gmail_quote">On Wed, Aug 10, 2011 at 11:11 AM, Lightner, Jeff <span dir="ltr"><<a href="mailto:JLightner@water.com" target="_blank">JLightner@water.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I'm pretty sure you can't do /boot on LVM in RHEL/CentOS given that even when they default to an LVM layout during install they still always create /boot as the first hard partition and put LVM as the second hard partition.<br>
<br>
Every RHEL/CENTOS server we have has /boot on a partition rather than an LV for this reason. Never tried forcing it to LVM.<br>
<div><br>
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<br>
-----Original Message-----<br>
From: <a href="mailto:ale-bounces@ale.org" target="_blank">ale-bounces@ale.org</a> [mailto:<a href="mailto:ale-bounces@ale.org" target="_blank">ale-bounces@ale.org</a>] On Behalf Of Michael B. Trausch<br>
Sent: Wednesday, August 10, 2011 10:12 AM<br>
To: Atlanta Linux Enthusiasts<br>
Subject: Re: [ale] Continuing Saga of Centos 5.6<br>
<br>
</div><div><div></div><div>On 08/10/2011 09:33 AM, Derek Atkins wrote:<br>
> Even Fedora 15 still uses Grub v1.<br>
><br>
> It's sufficiently different that Red Hat hasn't switched over.<br>
<br>
A shame, really. GRUB 2 is far superior in every way.<br>
<br>
--- Mike<br>
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