On 25/10/11 13:37, C. Falconer wrote: > Roger Searle wrote, On 10/22/2011 09:39 AM: >> Device Boot Start End Blocks Id System >> /dev/sda1 * 30159 30401 1951897+ 82 Linux swap / Solaris >> /dev/sda4 1 30158 242244073 5 Extended >> /dev/sda5 1 25294 203173992 83 Linux >> /dev/sda6 25295 30158 39070048+ 83 Linux > ... > > > I have to admit I haven't seen a simple partition table like that for ages. > Why did you put swap first on the disk? I have no idea, other than to say the various disks in the box have come and gone over the years, been in there varying times and it has been through quite a few reinstalls and new installs, various partitions have been removed and recreated as a result. And of course I sometimes don't use my brain very well... It will have become swap on a "second drive". This current install has /, /home, swap, all on sdc. 4 drives in there right now.
Your pv/lvraid info below is very interesting, no questions right now. I've temporarily resolved my mythtv disk space issue with creating another storage group using a "spare" partition, but thanks for the insight into another possibility which I've not played with before but am keen to. I definitely need a new drive for this box at some point soon. It may well coincide with building a front end box when funds allow - the above sda and another coming out, a TB (or 2) going in. > By contrast, here's my desktop, which is still FC13 based. > > > > Device Boot Start End Blocks Id System > /dev/sda1 * 2048 4098047 2048000 fd Linux raid > autodetect > /dev/sda2 4098048 490233855 243067904 fd Linux raid > autodetect > > > which leads to: > > [~]$ cat /proc/mdstat > Personalities : [raid1] > md5 : active raid1 sda2[0] sdb2[1] > 243066748 blocks super 1.1 [2/2] [UU] > bitmap: 1/2 pages [4KB], 65536KB chunk > > md0 : active raid1 sda1[0] sdb1[1] > 2047988 blocks super 1.0 [2/2] [UU] > > > So /boot is a raid1, the machine could use either to boot. When the OS > is up, both bits are synched. > > > > > [~]$ sudo pvdisplay > --- Physical volume --- > PV Name /dev/md5 > VG Name vg_0 > PV Size 231.81 GiB / not usable 25.87 MiB > Allocatable yes (but full) > PE Size 32.00 MiB > Total PE 7417 > Free PE 4260 > Allocated PE 3157 > PV UUID m5RtvB-3BQj-P7Rg-I5qA-BRH0-nARY-xzYuh3 > > > md5 is a raid1 also, which is a physical space for LVM > > > > > > [~]$ sudo lvdisplay > --- Logical volume --- > LV Name /dev/vg_0/root > VG Name vg_0 > LV UUID XrjNoQ-ycDQ-Npph-SKAS-Bs52-tWli-SCIOy2 > LV Write Access read/write > LV Status available > # open 1 > LV Size 97.66 GiB > Current LE 3125 > Segments 1 > Allocation inherit > Read ahead sectors auto > - currently set to 256 > Block device 253:0 > > --- Logical volume --- > LV Name /dev/vg_0/swap > VG Name vg_0 > LV UUID g06aAs-2N6H-d1CW-fr1X-6DSI-FSmh-kJmc03 > LV Write Access read/write > LV Status available > # open 1 > LV Size 1.00 GiB > Current LE 32 > Segments 1 > Allocation inherit > Read ahead sectors auto > - currently set to 256 > Block device 253:1 > > > Inside the PV there are two LVs and some spare space, so I can expand > either partiiton or make a new one as I see fit. > So here's the mount table > > > [cfalconer@ttt07 ~]$ df > Filesystem 1K-blocks Used Available Use% Mounted on > /dev/mapper/vg_0-root > 100791728 15221400 80450328 16% / > /dev/md0 2015812 129332 1784084 7% /boot > junk:/rsync/iso 1465058560 1274893824 190164736 88% /mnt/iso > //bruce/shared 262244212 207756388 54487824 80% /mnt/shared > /dev/sdc1 7955256 5679460 2275796 72% /media/Camshot > > > > > I've done similar for a mythbox for a coworker.... sda 160 GB + sdb 1TB > md0 first 500 MB of each disk raid1 for /boot > md5 Rest of sda plus 159 GB from middle of sdb as a PV for LVM > /mythdata 700GB as sdb3 > > > Any questions? > > > > _______________________________________________ Linux-users mailing list Linux-users@lists.canterbury.ac.nz http://lists.canterbury.ac.nz/mailman/listinfo/linux-users
