[linux] Keby tak Linux vedel toto...

[Lubomir Host]

On Sat, Jan 29, 2005 at 04:04:14PM +0100, oravec wrote:
> Neviem, či je to práve ono....

Ale my vieme, ze je to presne to. :-) Doplnim este:

http://www.linux.com/howtos/LVM-HOWTO/index.shtml
http://www.aplawrence.com/Linux/lvm.html

a este trosku nesuvisiace ale tyka sa to filesystemov:

http://www.linux.org/docs/ldp/howto/Filesystems-HOWTO-9.html

Ja mam na domacom serveri spravene presne to, o com si hovoril. Vid
nasledujuce informacie.

Mam 2 disky (120G a 200G), 40G z toho je raidovanych, zvysok je bud
stripovany alebo je to oblast na jednom disku. Pritom pomocou LVM to je
spravene este tak, ze 12G viem okamzite podla potreby prihodit tam, kde
by bolo malo miesta. Na /usr, /home, /tmp alebo /var. Nemusim kvoli tomu
ani restartnut ani vypnut aplikacie, ide to spravit uplne za behu. A ked
dokupim nahodou dalsie disky, tak ich mozem pridat rovnako. Bez toho,
aby som musel nejake data co i len presuvat. Proste naskrutkujem disky
do pocitaca a po nastartovani mam do 10 minut dalsie volne miesto tam,
kde potrebujem.

Takze ak si to zratas, na mission critical serveri pridanie dalsieho
miesta by netrvalo viac ako cca 20-30 minut (vypnutie stroja, pridanie
obycajnych IDE diskov, nastartovanie stroja, cca 6 prikazov v shelli na
pridanie dalsieho miesta).

Skus toto spravit vo windowsoch. ;-) I ked aj tam by sa to asi dalo
spravit, ja sa vo windowsoch zase az tak nevyznam ... ;-)

--------------------------%<--------------------------
16:02 sauron [~]: df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/md0              473M  159M  314M  34% /
tmpfs                 9.6M   12K  9.6M   1% /dev/shm
/dev/mapper/sauron-usr
                      3.9G  3.3G  632M  85% /usr
/dev/mapper/sauron-home
                       20G   15G  5.0G  75% /home
/dev/mapper/sauron-tmp
                       92M  192K   92M   1% /tmp
/dev/mapper/sauron-var
                      3.9G  2.9G  1.1G  73% /var
/dev/md6              144G  113G   31G  79% /strip
--------------------------%<--------------------------

-----------------%<-----------------
16:03 sauron [~]: cat /proc/mdstat 
Personalities : [raid0] [raid1] 
md1 : active raid1 hdc6[1] hda9[0]
      1953408 blocks [2/2] [UU]
      
md7 : active raid1 hdc7[1] hda10[0]
      41017408 blocks [2/2] [UU]
      
md6 : active raid0 hdc8[1] hda11[0]
      150133248 blocks 4k chunks
      
md0 : active raid1 hdc5[1] hda8[0]
      488704 blocks [2/2] [UU]
      
unused devices: <none>
-----------------%<-----------------

--------------------------------------%<--------------------------------------
16:04 root na sauron [~]## fdisk -l

Disk /dev/hda: 203.9 GB, 203928109056 bytes
255 heads, 63 sectors/track, 24792 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/hda1   *           1         637     5116671    b  W95 FAT32
/dev/hda2             638        1466     6658942+  a5  FreeBSD
/dev/hda3            1467       24792   187366064    f  W95 Ext'd (LBA)
/dev/hda5            1467        2137     5389776   83  Linux
/dev/hda6            2138        2381     1959898+   b  W95 FAT32
/dev/hda7            2382        3598     9775552    c  W95 FAT32 (LBA)
/dev/hda8            3599        3659      488817   fd  Linux raid autodetect
/dev/hda9            3659        3903     1953472+  fd  Linux raid autodetect
/dev/hda10           3903        9009    41017504+  fd  Linux raid autodetect
/dev/hda11           9009       18354    75066736+  fd  Linux raid autodetect
/dev/hda12          18354       20786    19535922    c  W95 FAT32 (LBA)
/dev/hda13          20787       24792    32178163+  83  Linux

Disk /dev/hdc: 122.9 GB, 122942324736 bytes
16 heads, 63 sectors/track, 238216 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/hdc1   *           1        3045     1534176   1c  Hidden W95 FAT32 (LBA)
/dev/hdc2            3045      238216   118526656+  85  Linux extended
/dev/hdc5            3045        4014      488817   fd  Linux raid autodetect
/dev/hdc6            4015        7890     1953472+  fd  Linux raid autodetect
/dev/hdc7            7891       89274    41017504+  fd  Linux raid autodetect
/dev/hdc8           89275      238216    75066736+  fd  Linux raid autodetect
--------------------------------------%<--------------------------------------

rajo

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