Niki Kovacs
2015-Feb-18 22:37 UTC
[CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?
Le 18/02/2015 23:12, Chris Murphy a ?crit :> "installer is organized around mount points" is correct, and what gets > mounted on mount points? Volumes, not partitions.Says who? -- Microlinux - Solutions informatiques 100% Linux et logiciels libres 7, place de l'?glise - 30730 Montpezat Web : http://www.microlinux.fr Mail : info at microlinux.fr T?l. : 04 66 63 10 32
Chris Murphy
2015-Feb-19 04:20 UTC
[CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?
On Wed, Feb 18, 2015 at 3:37 PM, Niki Kovacs <info at microlinux.fr> wrote:> Le 18/02/2015 23:12, Chris Murphy a ?crit : >> >> "installer is organized around mount points" is correct, and what gets >> mounted on mount points? Volumes, not partitions. > > > Says who?Because it's ambiguous. A partition might entirely contain a volume (a filesystem), but in your case none of your partitions contain a volume. They're members of md raid first, only once that's assembled is there a logical block device, which happens to contain the volume, and it is the volume you're mounting. All you have to do is check fstab, partitions aren't assigned mount points, volumes are. -- Chris Murphy
John R Pierce
2015-Feb-19 04:25 UTC
[CentOS] CentOS 7: software RAID 5 array with 4 disks and no spares?
On 2/18/2015 8:20 PM, Chris Murphy wrote:> On Wed, Feb 18, 2015 at 3:37 PM, Niki Kovacs<info at microlinux.fr> wrote: >> >Le 18/02/2015 23:12, Chris Murphy a ?crit : >>> >> >>> >>"installer is organized around mount points" is correct, and what gets >>> >>mounted on mount points? Volumes, not partitions. >> > >> > >> >Says who? > Because it's ambiguous. A partition might entirely contain a volume (a > filesystem), but in your case none of your partitions contain a > volume. They're members of md raid first, only once that's assembled > is there a logical block device, which happens to contain the volume, > and it is the volume you're mounting. All you have to do is check > fstab, partitions aren't assigned mount points, volumes are.and I make my mdraid's PV's for lvm, and create LV's that are my file systems which I mount. so thats one MORE level of indirection. disks -> partition(s) -> mdraid devices -> PVs -> VG -> LV -> file system. phew. -- john r pierce 37N 122W somewhere on the middle of the left coast