RAID, lvm και άλλα δαιμόνια

V13 v13 at v13.gr
Tue Nov 4 00:06:12 EET 2008


On Monday 03 November 2008, Harris Kosmidhs wrote:
> Το θέμα είναι αν χρειάζεται να κάνω lvm στο md0 και πως. Θα ήθελα 2 lvm.
> Ένα για το / και ένα για το /opt.

H tha kaneis diaforetika MD devices gia kathe partition kai den tha 
xrhsimopoihseis LVM, h tha kaneis ena (h pithanos perissotera) ta opoia tha 
leitoyrgoyn os physical volumes sto LVM. Apo ekei kai pera ftiaxneis ena 
volume group me ayto/ayta to/ta physical volume(s) kai apo ekei dhmioyrgeis 
oti kai osa partitions theleis (logical volumes).

Gia na mporeseis na bootareis tha prepei na ftiakseis ena mikro md device se 
raid 1 (mirror) kai na to xrisimopoihseis san /boot.

Prin asxolitheis me to LVM se production katastasi peiramatisoy kai diabase to 
sxetiko documentation. Einai h kaliterh soy eykairia.

Ean exeis RAID1+LVM proteino anepifylakta na ftiakseis mikra MD devices (p.x. 
50GB to kathena) kai na ta baleis ola os physical volumes sto LVM. Me to 
tropo ayto tha apofeygeis to plhres resync ton 500GB otan kati paei straba.

<<V13>>

p.s. Min ksexaseis na apenergopoihseis th write cache ton diskon.
p.s.2. Ta sd* devices mporoyn na exoyn mexri 4+12 partitions, opote an 
ftiakseis 50aria komatia prosexe mhn ksemineis.




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