16/09/05

RAID1 con FC4 e IBM Xseries 236

Ho installato FC4 su di un IBM Xseries 236 (nelle info della IBM il server non supportava Fedora e altri linux, ma solo RHE). Per installare FC4 ho fatto nel seguente modo:

  1. inserito il primo cdrom ho fatto partire l'installer in modalità linux text (non si riesce ad installare in modalità grafica)
  2. Ho creato il raid 1 software
  3. quando si arriva a disk druid si seleziona lo spazio necessario per la prima partizione si
    seleziona RAID SOFTWARE nella casella dedicata al tipo di file system si inserice lo spazio
    da destinare e si seleziona, nel mio caso sda1 la stessa cosa deve essere ripetuta per sdb1
    ricordatevi che sda1 e sdb1 devo avere lo stesso spazio.
  4. Una volta creati i /dev/md si seleziona RAID si inserisce il punto di mount (es. /) si seleziona il tipo di file system (es. ext3) si selezionano i due sd (sda1 e sdb1) ed il gioco è
    fatto
  5. Si prosegue allo stesso modo per tutti i file system che volete creare compresa swap
    (attenzione non consigliano di mettere swap sotto raid).
  6. ho caricato i pacchetti che mi occorrevano


Poi una volta che FC4 era su ho provato il RAID staccando il disco primario, il raid ricostruiva il tutto sul disco sopra. Per ricostruire il raid sul nuovo disco mi è bastato dare il seguente comando:
#cat /proc/mdstat (controlla lo stato dei dischi)
#md /dev/mdx -r /dev/sdxx (con questo smontiamo sdxx danneggiato)
#md /dev/mdx -a /dev/sdxx (con questo ripristiniamo il raid).
Il tutto è tornato al suo posto.

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