Dotaz: Raid pri installaci Debian Unstable.

[anon123]

Rad bych se zeptal jestli je mozne vytvorit raid pri installaci Debina ale zatim je s jednim diskem? Jak na to.

S dvouma neni problem, ale kdyz je tam jeden a snazim se vytvorid array tak to nejak nebere.

Druhy chci dodat pozdeji.

Odpovědi

[Tomáš]

A jak by se takový RAID měl chovat?

[David Jaša]

Jako degradovaný? AFAIK to instalátorem nejde, ale je možné překlopit nainstalovaný systém na RAID 1.

[anon123]

Ano jako degradovany. Vim ze to jde preklopit. Prave kdyz se to preklapi, tak se zadava, ze jeden schazi a pak se doda do rady a synchronizuje se. Prave jsem zjistil, ze pri installaci to nejde./p>

Diky

[Ondřej Čečák]

Mam za to, ze to jde (jenom ne primo pres instalator), ale casto rychlejsi mi prijde nainstalovat system na jeden disk nebo treba do budouciho swapoveho oddilu a degradovany raid si vyrobit rucne.

[ytre]

Nektere veci v instalatorech proste nenaklikate...

/dev/sda2               1      302399      151199+  fd  Linux raid autodetect
Partition 2 does not end on cylinder boundary.
/dev/sda3        20774880   490234751   234729936   8e  Linux LVM
Partition 3 does not end on cylinder boundary.

/dev/sdb2               1      302399      151199+  fd  Linux raid autodetect
Partition 2 does not end on cylinder boundary.
/dev/sdb3        20774880   490234751   234729936   8e  Linux LVM
Partition 3 does not end on cylinder boundary.

/dev/sdc2               1      302399      151199+  fd  Linux raid autodetect
Partition 2 does not end on cylinder boundary.
/dev/sdc3        20774880   490234751   234729936   8e  Linux LVM
Partition 3 does not end on cylinder boundary.

/dev/sdd2               1      302399      151199+  fd  Linux raid autodetect
Partition 2 does not end on cylinder boundary.
/dev/sdd3        20774880   490234751   234729936   8e  Linux LVM
Partition 3 does not end on cylinder boundary.

./lvm pvs
  PV         VG   Fmt  Attr PSize   PFree
  /dev/sda3  a    lvm2 a-   223.86G  8.86G
  /dev/sdb3  b    lvm2 a-   223.86G  8.86G
  /dev/sdc3  c    lvm2 a-   223.86G  8.86G
  /dev/sdd3  d    lvm2 a-   223.86G  8.86G

./lvm lvs
  LV     VG   Attr   LSize   Origin Snap%  Move Log Copy%
  raid10 a    -wc-ao  15.00G
  raid5  a    -wc-ao 190.00G
  raid6  a    -wc-ao  10.00G
  raid10 b    -wc-ao  15.00G
  raid5  b    -wc-ao 190.00G
  raid6  b    -wc-ao  10.00G
  raid10 c    -wi-ao  15.00G
  raid5  c    -wi-ao 190.00G
  raid6  c    -wi-ao  10.00G
  raid10 d    -wc-ao  15.00G
  raid5  d    -wc-ao 190.00G
  raid6  d    -wc-ao  10.00G

cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid5] [raid4] [raid6] [multipath] [faulty]
md10 : active raid10 dm-1[0] dm-10[3] dm-7[2] dm-4[1]
      31457152 blocks 64K chunks 2 near-copies [4/4] [UUUU]

md6 : active raid6 dm-0[0] dm-9[3] dm-6[2] dm-3[1]
      20971392 blocks level 6, 64k chunk, algorithm 2 [4/4] [UUUU]

md5 : active raid5 dm-2[0] dm-11[3] dm-8[2] dm-5[1]
      597688128 blocks level 5, 64k chunk, algorithm 2 [4/4] [UUUU]

md1 : active raid1 sdd2[3] sdc2[2] sdb2[1] sda2[0]
      151104 blocks [4/4] [UUUU]

./lvm pvs
  PV         VG   Fmt  Attr PSize   PFree
  /dev/md10  r10  lvm2 a-    30.00G  2.00G
  /dev/md5   r5   lvm2 a-   570.00G 11.00G
  /dev/md6   r6   lvm2 a-    20.00G     0
  /dev/sda3  a    lvm2 a-   223.86G  8.86G
  /dev/sdb3  b    lvm2 a-   223.86G  8.86G
  /dev/sdc3  c    lvm2 a-   223.86G  8.86G
  /dev/sdd3  d    lvm2 a-   223.86G  8.86G

./lvm lvs
  LV     VG   Attr   LSize   Origin Snap%  Move Log Copy%
  raid10 a    -wc-ao  15.00G
  raid5  a    -wc-ao 190.00G
  raid6  a    -wc-ao  10.00G
  raid10 b    -wc-ao  15.00G
  raid5  b    -wc-ao 190.00G
  raid6  b    -wc-ao  10.00G
  raid10 c    -wi-ao  15.00G
  raid5  c    -wi-ao 190.00G
  raid6  c    -wi-ao  10.00G
  raid10 d    -wc-ao  15.00G
  raid5  d    -wc-ao 190.00G
  raid6  d    -wc-ao  10.00G
  home   r10  -wi-ao  20.00G
  swap   r10  -wi-ao   3.00G
  var    r10  -wi-ao   5.00G
  data   r5   -wi-ao 550.00G
  debian r5   -wc-ao   5.00G
  stable r5   -wi-ao   4.00G
  home   r6   -wi-ao  20.00G

[ytre]

Pointa je, ze puvodne to teda vzniko jeste na woodym s nemalym usilim a upgrade taky nebyl bezproblemovy...