DRBD Users,<br><br>I'm setting up 2 CentOS 5.4 x86_64 servers to use DRBD. I set them up to do RAID1, but /dev/drbd0 only shows up at 12GB instead of the 1.8 TB that the underlying devices have.<br><br>Both boxes are configured just like this, with 1800GB for /dev/sda4<br>
<br><div style="margin-left: 40px;">[root@centos54 etc]# parted<br>GNU Parted 1.8.1<br>Using /dev/sda<br>Welcome to GNU Parted! Type 'help' to view a list of commands.<br>(parted) print<br><br>Model: Dell VIRTUAL DISK (scsi)<br>
Disk /dev/sda: 2000GB<br>Sector size (logical/physical): 512B/512B<br>Partition Table: msdos<br><br>Number Start End Size Type File system Flags<br> 1 32.3kB 206MB 206MB primary ext3 boot<br>
2 206MB 108GB 107GB primary ext3<br> 3 108GB 120GB 12.8GB primary ext3<br> 4 120GB 1920GB 1800GB primary<br></div><br>Here is the /etc/drbd.conf used on each<br><br><div style="margin-left: 40px;">
global { usage-count no; }<br>common { syncer { rate 1000M; } }<br>resource drbd-data {<br> protocol C;<br> startup {<br> wfc-timeout 15;<br> degr-wfc-timeout 60;<br> become-primary-on centos54;<br>
}<br><br># disk {<br># size 1700G;<br># }<br> net {<br> cram-hmac-alg sha1;<br> shared-secret "myP4$$";<br> }<br> on centos54 {<br>
device /dev/drbd0;<br> disk /dev/sda3;<br> address <a href="http://10.0.0.1:7787">10.0.0.1:7787</a>;<br> meta-disk internal;<br> }<br> on centos54_2 {<br>
device /dev/drbd0;<br> disk /dev/sda3;<br> address <a href="http://10.0.0.2:7787">10.0.0.2:7787</a>;<br> meta-disk internal;<br> }<br>}<br></div><br>From there, I ran the following command to create the md on each box<br>
<pre style="margin-left: 40px;"><font size="4"><span style="font-family: arial,helvetica,sans-serif;"># drbdadm create-md drbd-data</span></font><br></pre><br>Then I ran the following command on the primary system<br><pre style="margin-left: 40px;">
<font size="4"># drbdadm -- --overwrite-data-of-peer primary drbd-data</font><br></pre>Everything looks to synchronize with UpToDate for each device and centos54 is primary.<br><br>However, now if I run parted on /dev/drbd0, it is only 12 GB, instead of 1.8TB. I tried doing the following, but I still only get a 12GB partition<br>
<br># mkfs.ext3 /dev/drbd0<br># mount /dev/drbd0 /media<br><br>What can I do to get the full 1.8 TB of mirrored storage? Unfortunately, I don't have the output of the last few commands available, sine the server is in use at the moment. I'll be able to test and give proper output this weekend, when I swap out hard drives and attempt this transition again.<br>
<br>Thank You,<br><br>Chad<br>