Re: [CentOS] Race condition with mdadm at boot

2011-03-13 Thread Drew
> I assume the long power-on pause is due to the BIOS silently checking RAM, > with the side effect of giving the disks ample time to spin up. Most likely. I have an old Supermicro board (Dual Athlon MP) that's being retired from frontline service and it has a long delay from when you power it up

Re: [CentOS] Race condition with mdadm at boot

2011-03-12 Thread Chuck Munro
On 03/12/2011 09:00 AM, compdoc wrote: >> >On the particular Supermicro motherboard I'm using, there is a very >> >long delay (10 or 15 sec) between power-on and initiation of visible >> >BIOS activity, so all disk drives have ample time to spin up and stabilize. > > Yeah, I have used Supermicro

Re: [CentOS] Race condition with mdadm at boot [still mystifying]

2011-03-12 Thread compdoc
>On the particular Supermicro motherboard I'm using, there is a very >long delay (10 or 15 sec) between power-on and initiation of visible >BIOS activity, so all disk drives have ample time to spin up and stabilize. Yeah, I have used Supermicro in the past and they had the same long pause when yo

Re: [CentOS] Race condition with mdadm at boot [still mystifying]

2011-03-11 Thread Chuck Munro
On 03/11/2011 09:00 AM, Les Mikesell wrote: > > On 3/10/11 9:25 PM, Chuck Munro wrote: > >> > However, on close examination of dmesg, I found something very >> > interesting. There were missing 'bind' statements for one or the >> > other hot spare drive (or sometimes both). These drives are c

Re: [CentOS] Race condition with mdadm at boot [still mystifying]

2011-03-10 Thread Les Mikesell
On 3/10/11 9:25 PM, Chuck Munro wrote: > However, on close examination of dmesg, I found something very > interesting. There were missing 'bind' statements for one or the > other hot spare drive (or sometimes both). These drives are connected > to the last PHYs in each SATA controller ... in oth