tag:blogger.com,1999:blog-2267284187143627970.post8334424221732627328..comments2023-06-27T03:33:05.307-05:00Comments on RAT Nest: iSCSI LVM Red Hat/CEntOS/Oracle LinuxRAThttp://www.blogger.com/profile/10116429541709326996noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-2267284187143627970.post-92040343847276531072014-02-12T10:46:06.921-06:002014-02-12T10:46:06.921-06:00"The command that creates Physcal Volumes is ..."The command that creates Physcal Volumes is called pvcreate. We can run it against a partition (pvcreate /dev/sdb1) or directly against physical drive (pvcreate /dev/sdb). The second option seems easier, because we can skip the partition definition. You should, however, avoid using it. There is a possibility that other partitioning tools and operating systems might not recognize that the disk is being used by LVM, if there is no valid partition on it. Such tools might also try to initialize the disk, which will be fatal for the data. To encourage good practices we will create a single partition on all four drives, that we plan to use with LVM. Let’s start with /dev/sdb." from http://manchev.org/2011/11/introduction-to-logical-volume-manager/RAThttps://www.blogger.com/profile/10116429541709326996noreply@blogger.comtag:blogger.com,1999:blog-2267284187143627970.post-12824445433049468032014-02-11T15:35:46.199-06:002014-02-11T15:35:46.199-06:00ok - Just spoke with a Red Hat engineer - he says ...ok - Just spoke with a Red Hat engineer - he says you CAN use the entire disk, and, in fact, in most cases THAT is "Best Practices".<br /><br />Hmmm...RAThttps://www.blogger.com/profile/10116429541709326996noreply@blogger.com