流体軸受の HDD、Seagate の ST3120026A を接続してみた。
WD1200AB がアクセスしないときも常に
「キィ〜〜〜〜〜〜〜〜〜〜〜〜〜〜〜〜ン」といっていたのに対し、
ほぼ、無音ともいえるほど、うそのように静かである。
早速、換装することにする。
hdc: attached ide-disk driver. hdc: host protected area => 1 hdc: 234441648 sectors (120034 MB) w/8192KiB Cache, CHS=14593/255/63, UDMA(33) hdd: attached ide-disk driver. hdd: host protected area => 1 hdd: 234441648 sectors (120034 MB) w/8192KiB Cache, CHS=14593/255/63, UDMA(33)と、まったく同じジオメトリのようである。
Command (m for help): p Disk /dev/hdd: 255 heads, 63 sectors, 14593 cylinders Units = cylinders of 16065 * 512 bytes Device Boot Start End Blocks Id System /dev/hdd1 1 262 2104483+ 83 Linux /dev/hdd2 263 295 265072+ 82 Linux swap /dev/hdd3 296 14593 114848685 83 Linux
intel# mke2fs -j /dev/hdd1 mke2fs 1.29 (24-Sep-2002) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) 263296 inodes, 526120 blocks 26306 blocks (5.00%) reserved for the super user First data block=0 17 block groups 32768 blocks per group, 32768 fragments per group 15488 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912 Writing inode tables: done Creating journal (8192 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 39 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override.Filesystem features を見る
intel# tune2fs -l /dev/hdd1 tune2fs 1.29 (24-Sep-2002) Filesystem volume name:やはり dir_index が付いている。Last mounted on: Filesystem UUID: 44e69fee-2b69-40f6-a2da-038a9c6a2655 Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal dir_index filetype sparse_super Filesystem state: clean Errors behavior: Continue Filesystem OS type: Linux Inode count: 263296 Block count: 526120 Reserved block count: 26306 Free blocks: 509639 Free inodes: 263285 First block: 0 Block size: 4096 Fragment size: 4096 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 15488 Inode blocks per group: 484 Last mount time: Thu Jan 1 09:00:00 1970 Last write time: Tue Jan 20 21:38:22 2004 Mount count: 0 Maximum mount count: 39 Last checked: Tue Jan 20 21:38:18 2004 Check interval: 15552000 (6 months) Next check after: Sun Jul 18 21:38:18 2004 Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 128 Journal UUID: Journal inode: 8 Journal device: 0x0000 First orphan inode: 0 Default directory hash: tea Directory Hash Seed: d5f88881-05f9-4c0f-87d0-b5a4e5925057
intel# tune2fs -O ^dir_index /dev/hdd1 tune2fs 1.29 (24-Sep-2002) intel# fsck -fD /dev/hdd1 fsck 1.29 (24-Sep-2002) e2fsck 1.29 (24-Sep-2002) Pass 1: Checking inodes, blocks, and sizes Pass 2: Checking directory structure Pass 3: Checking directory connectivity Pass 3A: Optimizing directories Optimizing directories: 2 Pass 4: Checking reference counts Pass 5: Checking group summary information /dev/hdd1: ***** FILE SYSTEM WAS MODIFIED ***** /dev/hdd1: 11/263296 files (0.0% non-contiguous), 16481/526120 blocks続いて hdd3
intel# mke2fs -j /dev/hdd3 mke2fs 1.29 (24-Sep-2002) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) 14368768 inodes, 28712171 blocks 1435608 blocks (5.00%) reserved for the super user First data block=0 877 block groups 32768 blocks per group, 32768 fragments per group 16384 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000, 7962624, 11239424, 20480000, 23887872 Writing inode tables: done Creating journal (8192 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 24 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. intel# tune2fs -l /dev/hdd3 tune2fs 1.29 (24-Sep-2002) Filesystem volume name:WD1200AB の場合は、large_file が指定されていたが、 今回は着いていない。謎。Last mounted on: Filesystem UUID: aad31a05-40ce-4fe7-8443-946823ea4404 Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal dir_index filetype sparse_super Filesystem state: clean Errors behavior: Continue Filesystem OS type: Linux Inode count: 14368768 Block count: 28712171 Reserved block count: 1435608 Free blocks: 28253066 Free inodes: 14368757 First block: 0 Block size: 4096 Fragment size: 4096 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 16384 Inode blocks per group: 512 Last mount time: Thu Jan 1 09:00:00 1970 Last write time: Tue Jan 20 21:40:18 2004 Mount count: 0 Maximum mount count: 24 Last checked: Tue Jan 20 21:38:42 2004 Check interval: 15552000 (6 months) Next check after: Sun Jul 18 21:38:42 2004 Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 128 Journal UUID: Journal inode: 8 Journal device: 0x0000 First orphan inode: 0 Default directory hash: tea Directory Hash Seed: 3d62c1e7-d740-472a-9392-0157dcc9e0c2
dir_index のみを消す。
intel# tune2fs -O ^dir_index /dev/hdd3 tune2fs 1.29 (24-Sep-2002) intel# fsck -fD /dev/hdd3 fsck 1.29 (24-Sep-2002) e2fsck 1.29 (24-Sep-2002) Pass 1: Checking inodes, blocks, and sizes Pass 2: Checking directory structure Pass 3: Checking directory connectivity Pass 3A: Optimizing directories Optimizing directories: 2 Pass 4: Checking reference counts Pass 5: Checking group summary information /dev/hdd3: ***** FILE SYSTEM WAS MODIFIED ***** /dev/hdd3: 11/14368768 files (0.0% non-contiguous), 459105/28712171 blocks
intel# cd /tmp intel# mkdir hdc intel# mkdir hdd intel# mount /dev/hdc1 /tmp/hdc intel# mount /dev/hdd1 /tmp/hdd intel# cd /tmp/hdc intel# tar cf - . |(cd ../hdd; tar xvpf -) intel# cd .. intel# umount /tmp/hdc intel# umount /tmp/hdd intel# mount /dev/hdc3 /tmp/hdc intel# mount /dev/hdd3 /tmp/hdd intel# cd /tmp/hdc intel# tar cf - . |(cd ../hdd; tar xvpf -)さすがに 120GB のコピーには時間がかかる。。
仕方がないので、Link Station に2台の HDD を接続して /mnt をコピーする。
ところが、一晩経ってもコピーが終わらない。
同じ IDE チャンネルにつながっているからか、
そもそもパフォーマンスが悪いのか。
結局、実験機の
linkstationVine# mkswap /dev/hda2 Setting up swapspace version 1, size = 265068K linkstationVine# swapon -a linkstationVine# cat /proc/meminfo total: used: free: shared: buffers: cached: Mem: 64200704 34271232 29929472 0 3244032 18427904 Swap: 271425536 0 271425536