On 5/7/2014 11:36 AM, m.roth@5-cent.us wrote:
Also, my manager is very much not a fan of LVM, but we do have*large* RAIDs - we use RAID 6 for data, though we've used RAID 1 for /boot and /. Since I keep reading that "we really need to fix the fsck,etc tools for > 16TB in the next year" for the last 4 years (at least), I partition them as 14-16TB, and that works just fine.
Nowdays, any data volumes other than root and boot I format xfs. no fsck or > 16TB problems there.
I generally use raid10 for data, as my data is usually database oriented and raid6(0) performs poorly on committed random writes. raid6 or 6+0 gets used for large archival 'nearline' applications, like a backup server.
After avoiding lvm for years, I've found its too handy. the root vg will have an adequate sized / and /home and lots of unassigned space, so if I need more space for / or /home I can allocate it later. I tend to use dedicated xfs file systems for my database server versus other application file storage requirements, these will all be on the data vg.