[lug] Swap space, /boot and RAID and LVM

[Hugh Brown]

>>> I also noticed that the swap created by anaconda is only (!) 1.94 Gigs. I 
> know 
>>> at one time it was recommended that swap space should equal physical 
> memory. 
>>> Is that no longer recommended with very large memories? (I haven't had 
> time 
>>> to read the latest installment of the memory series on LWN yet today). 
>>>
>>> Opinions: should I increase the swap while I am thrashing the disk 
>>> partitioning? 
>> We've got a smaller server at work that has /boot on /dev/md0 and LVM on 
>>   /dev/md2 and it's been running that way for a year or more.  It's a 
>> box running vmware.  We found that the disk speed has been a major 
>> bottleneck for vmware on that system.
>>
>> This is what I found a few months ago when trying to understand recent 
>> swap recommendations: 
>>
> http://www.redhat.com/docs/manuals/enterprise/RHEL-5-manual/Deployment_Guide-en-US/ch-swapspace.html
>> Hugh
> 
> Thanks.
> 
> Looks like the Fedora install was a little stingy with swap space, as I 
> suspected. I'll fix that when I reconfigure the drives.
> 
> 

I forgot to add that when I do a kickstart on RH systems, I set the swap 
partition to be the "--recommended" size and anaconda gives me 2g swap 
on machines with 2g, 4g, 12g, and 16g of physical ram.

Hugh