https://community.hpe.com/t5/operating-system-linux/do-i-need-to-format-the-new-san-storage-allocated-to-my-server/m-p/4655455#M41393 do i need to formart before pvcreate ? Thu, 01 Jul 2010 08:36:42 GMT Techsystemquery 2010-07-01T08:36:42Z https://community.hpe.com/t5/operating-system-linux/do-i-need-to-format-the-new-san-storage-allocated-to-my-server/m-p/4655453#M41391 I have assigned new LUNS to my server now<BR /><BR />do i need to format the disk before pvcreate(pvcreate /dev/emcpowera) ? Thu, 01 Jul 2010 07:12:12 GMT https://community.hpe.com/t5/operating-system-linux/do-i-need-to-format-the-new-san-storage-allocated-to-my-server/m-p/4655453#M41391 Techsystemquery 2010-07-01T07:12:12Z https://community.hpe.com/t5/operating-system-linux/do-i-need-to-format-the-new-san-storage-allocated-to-my-server/m-p/4655454#M41392 hi,<BR /><BR />yes you need to make pvcreate, and the add to the existing or create a new VG.<BR /><BR />mikap Thu, 01 Jul 2010 07:41:50 GMT https://community.hpe.com/t5/operating-system-linux/do-i-need-to-format-the-new-san-storage-allocated-to-my-server/m-p/4655454#M41392 Michal Kapalka (mikap) 2010-07-01T07:41:50Z https://community.hpe.com/t5/operating-system-linux/do-i-need-to-format-the-new-san-storage-allocated-to-my-server/m-p/4655455#M41393 do i need to formart before pvcreate ? Thu, 01 Jul 2010 08:36:42 GMT https://community.hpe.com/t5/operating-system-linux/do-i-need-to-format-the-new-san-storage-allocated-to-my-server/m-p/4655455#M41393 Techsystemquery 2010-07-01T08:36:42Z https://community.hpe.com/t5/operating-system-linux/do-i-need-to-format-the-new-san-storage-allocated-to-my-server/m-p/4655456#M41394 no,<BR /><BR />you don't need pvcreate will create the structure for LVM, and of course all data will be lost, if the lun was used on another server.<BR /><BR />mikap Thu, 01 Jul 2010 08:37:49 GMT https://community.hpe.com/t5/operating-system-linux/do-i-need-to-format-the-new-san-storage-allocated-to-my-server/m-p/4655456#M41394 Michal Kapalka (mikap) 2010-07-01T08:37:49Z https://community.hpe.com/t5/operating-system-linux/do-i-need-to-format-the-new-san-storage-allocated-to-my-server/m-p/4655457#M41395 There is no need to do any sort of low-level formatting for the SAN disks at the server end.<BR /><BR />If any formatting is needed, most SAN storage systems do it internally. If the storage system uses any level of RAID technology, all the necessary formatting will be automatically done at the same time with the RAID set initialization.<BR /><BR />Once your server sees a LUN, that LUN is ready for pvcreate (or fdisk, if you want to use it).<BR /><BR />MK Thu, 01 Jul 2010 08:47:00 GMT https://community.hpe.com/t5/operating-system-linux/do-i-need-to-format-the-new-san-storage-allocated-to-my-server/m-p/4655457#M41395 Matti_Kurkela 2010-07-01T08:47:00Z https://community.hpe.com/t5/operating-system-linux/do-i-need-to-format-the-new-san-storage-allocated-to-my-server/m-p/4655458#M41396 hi,<BR /><BR />you are using Clariion storage from EMC, and of course powerpath as multipath.<BR /><BR />so if you run the pvcreate its done.<BR /><BR />mikap Thu, 01 Jul 2010 09:00:35 GMT https://community.hpe.com/t5/operating-system-linux/do-i-need-to-format-the-new-san-storage-allocated-to-my-server/m-p/4655458#M41396 Michal Kapalka (mikap) 2010-07-01T09:00:35Z https://community.hpe.com/t5/operating-system-linux/do-i-need-to-format-the-new-san-storage-allocated-to-my-server/m-p/4655459#M41397 Thanks alot all Thu, 01 Jul 2010 10:14:54 GMT https://community.hpe.com/t5/operating-system-linux/do-i-need-to-format-the-new-san-storage-allocated-to-my-server/m-p/4655459#M41397 Techsystemquery 2010-07-01T10:14:54Z