Boris Epstein wrote:
On Fri, Oct 30, 2015 at 12:57 PM, m.roth@5-cent.us wrote:
Boris Epstein wrote:
In your view, what is the most reliable and safe way to increase an LV housing the root filesystem of a Centos 6 VM. I am thinking either growing the virtual HD virtual device, or creating a new device and adding it as a PV to the VM, or perhaps migrating the whole FS to a new virtual disk.
Any input on how best to proceed would be appreciated.
Dumb question: why do you need a larger root filesystem?
First, how big is root? And if this is for stuff under, say, /var/www, I'd make a separate logical drive/partition, and mount that, rsync everything from /var/www to that, then shut down the web, and remount the new filesystem on /var/www.
Root, itself, doesn't need to be huge. We're using 500G, and seriously considering making it 125G in the future, with data, or web stuff, is on a separate partition, so when there's a sudden explosion of data, / is safe.
Well, we are talking much smaller scale here (only about 30 GB at present, planning to roughly double it).
<snip> Ok, that *is* small. I'd worry about a logfile suddenly growing massively, and freezing your system. (Yes, it has happened here, and then there was the time a summer student ran something, wouldn't be back until Monday... and got a 20G logfile, which blew out the NFS-mounted home directory fs, on which a number of other people resided... including *me*, and his manager, and our division head....)
mark