linux user group brescia

ho seguito passo passo (a parte essere lacunoso e incompleto se non 
avessi letto l'altro in italiano) se uso parted per vedere le partizioni 
sono identiche al mio primo test (howto italiano), sgdisk non le 
visualizza, dunque non capisco se sono info residue della partizione che 
sono fuorvianti...


Il 14/05/2014 21:32, El Kondor ha scritto:
> L'avevo visto ma non avevo letto i commenti a fine pagina! grazie.
> Ora studio e riprovo, ci sarà sicuramente un passaggio mancante nel mio
> howto!
>
>
> Il 14/05/2014 00:32, Marco Manenti ha scritto:
>
>>   * EL MARCONI <http://-/>
>>   *   23.03.14
>>     <http://dominicpratt.de/proxmox-ve-3-0-software-raid/#comment-669>
>> *
>>
>> Combined effort of:
>> http://dominicpratt.de/proxmox-ve-3-0-software-raid/
>> http://dominicpratt.de/proxmox-ve-3-0-software-raid/#comment-447
>>
>> For the latest ProxMox3.2 install on a DL120 G7 with SoftRAID.
>>
>> Installed first only on /dev/sda. Wanted conversion to RAID1.
>> No idea what causes the shift in partition numbering, but found out the
>> hard way that there is one additional /dev/?d?1 of 1024K in front of the
>> /boot (/dev/sda2) en / (/dev/sda3) partition. Combined this with the
>> sgdisk instead of the sfdisk and we now have a working system 2 x 1 Tb
>> RAID:
>>
>> root a proxmox2:~# sgdisk -R=/dev/sdb /dev/sda
>> The operation has completed successfully.
>>
>> root a proxmox2:~# sgdisk -G /dev/sdb
>> The operation has completed successfully.
>>
>> root a proxmox2:~# sgdisk -t 2:fd00 /dev/sdb
>> Warning: The kernel is still using the old partition table.
>> The new table will be used at the next reboot.
>> The operation has completed successfully.
>>
>> root a proxmox2:~# sgdisk -t 3:fd00 /dev/sdb
>> Warning: The kernel is still using the old partition table.
>> The new table will be used at the next reboot.
>> The operation has completed successfully.
>>
>> root a proxmox2:~# sgdisk -p /dev/sdb
>> Disk /dev/sdb: 1953525168 sectors, 931.5 GiB
>> Logical sector size: 512 bytes
>> Disk identifier (GUID): 8E3763E8-A40E-435F-BD72-4D8B11D0ECD8
>> Partition table holds up to 128 entries
>> First usable sector is 34, last usable sector is 1953525134
>> Partitions will be aligned on 2048-sector boundaries
>> Total free space is 3437 sectors (1.7 MiB)
>>
>> Number Start (sector) End (sector) Size Code Name
>> 1 2048 4095 1024.0 KiB EF02 primary
>> 2 4096 1048575 510.0 MiB FD00 primary
>> 3 1048576 1953523711 931.0 GiB FD00 primary
>>
>> root a proxmox2:~# sgdisk -p /dev/sda
>> Disk /dev/sda: 1953525168 sectors, 931.5 GiB
>> Logical sector size: 512 bytes
>> Disk identifier (GUID): E93C25C7-BC3F-4B43-A03E-1E16DB180D75
>> Partition table holds up to 128 entries
>> First usable sector is 34, last usable sector is 1953525134
>> Partitions will be aligned on 2048-sector boundaries
>> Total free space is 3437 sectors (1.7 MiB)
>>
>> Number Start (sector) End (sector) Size Code Name
>> 1 2048 4095 1024.0 KiB EF02 primary
>> 2 4096 1048575 510.0 MiB EF00 primary
>> 3 1048576 1953523711 931.0 GiB 8E00 primary
>>
>> root a proxmox2:~# mdadm –create /dev/md0 –level=1 –raid-disks=2 missing
>> /dev/sdb2
>> mdadm: Note: this array has metadata at the start and
>> may not be suitable as a boot device. If you plan to
>> store ‘/boot’ on this device please ensure that
>> your boot-loader understands md/v1.x metadata, or use
>> –metadata=0.90
>> Continue creating array? y
>> mdadm: Defaulting to version 1.2 metadata
>> mdadm: array /dev/md0 started.
>> root a proxmox2:~# mdadm –create /dev/md1 –level=1 –raid-disks=2 missing
>> /dev/sdb3
>> mdadm: Note: this array has metadata at the start and
>> may not be suitable as a boot device. If you plan to
>> store ‘/boot’ on this device please ensure that
>> your boot-loader understands md/v1.x metadata, or use
>> –metadata=0.90
>> Continue creating array? y
>> mdadm: Defaulting to version 1.2 metadata
>> mdadm: array /dev/md1 started.
>>
>> root a proxmox2:~# cat /proc/mdstat
>> Personalities : [raid1]
>> md1 : active raid1 sdb3[1]
>> 976106304 blocks super 1.2 [2/1] [_U]
>>
>> md0 : active raid1 sdb2[1]
>> 521920 blocks super 1.2 [2/1] [_U]
>>
>> unused devices:
>>
>> root a proxmox2:~# cat /etc/fstab
>> #
>> /dev/pve/root / ext3 errors=remount-ro 0 1
>> /dev/pve/data /var/lib/vz ext3 defaults 0 1
>> #UUID=044b28d5-190e-4acd-8684-9157b09d2a9e /boot ext3 defaults 0 1
>> /dev/md0 /boot ext3 defaults 0 1
>> /dev/pve/swap none swap sw 0 0
>> proc /proc proc defaults 0 0
>>
>> #Rebooted with manual intervention, fsck /dev/mapper/pve-root
>> #Rebooted with manual intervention, fsck /dev/mapper/pve-data
>>
>> echo “GRUB_DISABLE_LINUX_UUID=true” >> /etc/default/grub
>> echo “GRUB_PRELOAD_MODULES=””raid dmraid” >> /etc/default/grub
>> echo raid1 >> /etc/modules
>> echo raid1 >> /etc/initramfs-tools/modules
>> grub-install /dev/sda
>> grub-install /dev/sdb
>> # grub-install /dev/md0
>> update-grub
>> update-initramfs -u
>>
>> root a proxmox2:~# sgdisk -t 2:fd00 /dev/sda
>> Warning: The kernel is still using the old partition table.
>> The new table will be used at the next reboot.
>> The operation has completed successfully.
>>
>> root a proxmox2:~# mdadm –add /dev/md0 /dev/sda2
>> mdadm: added /dev/sda2
>> root a proxmox2:~# cat /proc/mdstat
>> Personalities : [raid1]
>> md0 : active raid1 sda2[2] sdb2[1]
>> 521920 blocks super 1.2 [2/1] [_U]
>> [=============>.......] recovery = 66.8% (349376/521920) finish=0.0min
>> speed=58229K/sec
>>
>> md1 : active (auto-read-only) raid1 sdb3[1]
>> 976106304 blocks super 1.2 [2/1] [_U]
>>
>> unused devices:
>> root a proxmox2:~# cat /proc/mdstat
>> Personalities : [raid1]
>> md0 : active raid1 sda2[2] sdb2[1]
>> 521920 blocks super 1.2 [2/2] [UU]
>>
>> md1 : active (auto-read-only) raid1 sdb3[1]
>> 976106304 blocks super 1.2 [2/1] [_U]
>>
>> unused devices:
>>
>> root a proxmox2:~# apt-get install screen
>> Reading package lists… Done
>> Building dependency tree
>> Reading state information… Done
>> Suggested packages:
>> iselect screenie byobu
>> The following NEW packages will be installed:
>> screen
>> 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
>> Need to get 670 kB of archives.
>> After this operation, 975 kB of additional disk space will be used.
>> Get:1 http://ftp.nl.debian.org/debian/ wheezy/main screen amd64
>> 4.1.0~20120320gitdb59704-7 [670 kB]
>> Fetched 670 kB in 1s (613 kB/s)
>> Selecting previously unselected package screen.
>> (Reading database … 42449 files and directories currently installed.)
>> Unpacking screen (from …/screen_4.1.0~20120320gitdb59704-7_amd64.deb) …
>> Processing triggers for install-info …
>> Processing triggers for man-db …
>> Setting up screen (4.1.0~20120320gitdb59704-7) …
>>
>> pvcreate /dev/md1
>> vgextend pve /dev/md1
>> pvmove /dev/sda3 /dev/md1
>>
>>> /dev/sda3: Moved: 29.3%
>>> /dev/sda3: Moved: 29.5%
>>> /dev/sda3: Moved: 29.6%
>>> /dev/sda3: Moved: 29.8%
>>
>>> /dev/sda3: Moved: 99.5%
>>> /dev/sda3: Moved: 99.6%
>>> /dev/sda3: Moved: 99.7%
>>> /dev/sda3: Moved: 99.8%
>>> /dev/sda3: Moved: 99.9%
>>> /dev/sda3: Moved: 100.0%
>>> /dev/sda3: Moved: 100.0%
>>
>> root a proxmox2:~# vgreduce pve /dev/sda3
>> Removed “/dev/sda3″ from volume group “pve”
>> root a proxmox2:~# pvremove /dev/sda3
>> Labels on physical volume “/dev/sda3″ successfully wiped
>> root a proxmox2:~# sgdisk -t 3:fd00 /dev/sda
>> Warning: The kernel is still using the old partition table.
>> The new table will be used at the next reboot.
>> The operation has completed successfully.
>> root a proxmox2:~# mdadm –add /dev/md1 /dev/sda3
>> mdadm: added /dev/sda3
>>
>> echo 80000 >/proc/sys/dev/raid/speed_limit_max
>>
>> root a proxmox2:~# cat /proc/mdstat
>> Personalities : [raid1]
>> md0 : active raid1 sda2[2] sdb2[1]
>> 521920 blocks super 1.2 [2/2] [UU]
>>
>> md1 : active raid1 sda3[2] sdb3[1]
>> 976106304 blocks super 1.2 [2/1] [_U]
>> [>....................] recovery = 0.0% (417408/976106304)
>> finish=233.7min speed=69568K/sec
>>
>> unused devices:
>>
>> Personalities : [raid1]
>> md0 : active raid1 sda2[2] sdb2[1]
>> 521920 blocks super 1.2 [2/2] [UU]
>>
>> md1 : active raid1 sda3[2] sdb3[1]
>> 976106304 blocks super 1.2 [2/1] [_U]
>> [===============>.....] recovery = 79.2% (773717568/976106304)
>> finish=66.0min speed=51049K/sec
>>
>> unused devices:
>>
>> root a proxmox2:~# cat /proc/mdstat
>> Personalities : [raid1]
>> md1 : active raid1 sda3[2] sdb3[1]
>> 976106304 blocks super 1.2 [2/2] [UU]
>>
>> md0 : active raid1 sda2[2] sdb2[1]
>> 521920 blocks super 1.2 [2/2] [UU]
>>
>> unused devices:
>>
>> Rating: 0.0/*5* (0 votes cast)
>> Rating: *0* (from 0 votes)
>>
>> Antworten
>> <http://dominicpratt.de/proxmox-ve-3-0-software-raid/?replytocom=669#respond>
>>
>>
>>
>>
>