Molmol is the File Server. See also: MoneyMoneyMoney/NewStorage.
Hardware
The "Sick of your moaning" design is *almost* what we have. Except the PSU, case, SAS expander card, and (hopefully soon) an SSD bay. It is basically the same. People who care to correct this.
Root Filesystem
There are 2 SSDs, partitioned with a GUID Partition Table (GPT).
Partition 1 on both stores the boot loader (Grub). Partition 2 on sda will contain a FreeBSD partition. Partition 2 on sdb stores a RAID which holds a LVM group, containing /, /boot and swap. Partition 3 on both forms a mirror for the ZFS SLOG (journal). Partition 4 on both forms a spanned (i.e. not mirrored) ZFS L2ARC (disk cache).
root@molmol:~# gdisk -l /dev/sda Found valid GPT with protective MBR; using GPT. Disk /dev/sda: 500118192 sectors, 238.5 GiB Logical sector size: 512 bytes Disk identifier (GUID): 77FC147A-5A20-486B-88E2-9EA0FAEC4D15 Partition table holds up to 128 entries First usable sector is 34, last usable sector is 500118158 Partitions will be aligned on 2-sector boundaries Total free space is 1 sectors (512 bytes) Number Start (sector) End (sector) Size Code Name 1 34 2047 1007.0 KiB EF02 BIOS boot partition 2 2048 83886080 40.0 GiB FD00 molmol-system 3 83886082 88080385 2.0 GiB A504 molmol-slog 4 88080386 500118158 196.5 GiB A504 molmol-l2arc
root@molmol:~# gdisk -l /dev/sdb Found valid GPT with protective MBR; using GPT. Disk /dev/sdb: 500118192 sectors, 238.5 GiB Logical sector size: 512 bytes Disk identifier (GUID): 80F4D19D-44F2-4851-90B5-E7CBEC7B23C3 Partition table holds up to 128 entries First usable sector is 34, last usable sector is 500118158 Partitions will be aligned on 2-sector boundaries Total free space is 1 sectors (512 bytes) Number Start (sector) End (sector) Size Code Name 1 34 2047 1007.0 KiB EF02 BIOS boot partition 2 2048 83886080 40.0 GiB FD00 molmol-system 3 83886082 88080385 2.0 GiB A504 molmol-slog 4 88080386 500118158 196.5 GiB A504 molmol-l2arc
root@molmol:~# cat /proc/mdstat
Personalities : [raid1]
md1 : active raid1 sdb2[1]
41909120 blocks super 1.2 [2/1] [_U]
unused devices: <none>root@molmol:~# lvs LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert boot molmol -wi-ao-- 512.00m root molmol -wi-ao-- 30.00g swap molmol -wi-ao-- 4.00g root@molmol:~# pvs PV VG Fmt Attr PSize PFree /dev/md1 molmol lvm2 a-- 39.96g 5.46g
ZFS
Followed this guide: http://bernaerts.dyndns.org/linux/75-debian/279-debian-wheezy-zfs-raidz-pool
Didn't setup snapshots.
root@molmol:~# zpool list NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT over 7.25T 1.64M 7.25T 0% 1.00x ONLINE -
root@molmol:~# zpool status
pool: over
state: ONLINE
scan: scrub repaired 0 in 0h0m with 0 errors on Sun Jul 27 18:02:05 2014
config:
NAME STATE READ WRITE CKSUM
over ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
sdc ONLINE 0 0 0
sdd ONLINE 0 0 0
sde ONLINE 0 0 0
sdf ONLINE 0 0 0
sdg ONLINE 0 0 0
sdh ONLINE 0 0 0
sdi ONLINE 0 0 0
sdj ONLINE 0 0 0
errors: No known data errorsThe zfs is /there and is currently exported to Motsugo.
root@molmol:~# df -h Filesystem Size Used Avail Use% Mounted on rootfs 227G 1.5G 214G 1% / udev 10M 0 10M 0% /dev tmpfs 1.6G 540K 1.6G 1% /run /dev/mapper/molmol-molmol--rootfs 227G 1.5G 214G 1% / tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 3.9G 0 3.9G 0% /run/shm /dev/md0 457M 19M 414M 5% /boot services.ucc.gu.uwa.edu.au:/space/away/home 1.9T 1.7T 26G 99% /away home.ucc.gu.uwa.edu.au:/home 2.0T 952G 963G 50% /home nortel.ucc.gu.uwa.edu.au:/vol/space/services 884G 674G 211G 77% /services over/there 6.1T 256K 6.1T 1% /there
root@molmol:~# cat /etc/exports /there motsugo(rw,sync,no_root_squash,mountpoint,no_subtree_check,secure)
GLHFDD.
