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#REDIRECT [[AWS persistent storage]] |
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__NOTOC__ |
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= Persistent Storage = |
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== Prepare the work environment == |
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Before start ensure you have the latest EC2 API tools installed on system. |
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Download the latest EC2 API from Amazon: |
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[http://developer.amazonwebservices.com/connect/entry.jspa?externalID=351] |
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And follow the instructions in [[aws-build|Buindling an AMI]] to install or replace the current API. |
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<pre><nowiki>#!wiki warning |
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'''Warning''' |
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Older releases of EC2 API cannot handle persistent volume commands. |
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</nowiki></pre> |
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== Create volume == |
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# Look for available zones |
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<pre><nowiki> |
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# ec2-describe-availability-zones |
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AVAILABILITYZONE us-east-1a available |
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AVAILABILITYZONE us-east-1b available |
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AVAILABILITYZONE us-east-1c available |
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</nowiki></pre> |
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# Create a volume, the `-s` specifies the size in Gigabytes. |
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<pre><nowiki> |
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# ec2-create-volume -z us-east-1a -s 549755813888 |
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Client.InvalidParameterValue: Volume of 549755813888GiB is too large; maximum is 1024GiB. |
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# ec2-create-volume -z us-east-1a -s 128 |
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VOLUME vol-cd2dc8a4 128 us-east-1a creating 2008-08-29T01:07:22+0000 |
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</nowiki></pre> |
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# Check the volume status |
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<pre><nowiki> |
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# ec2-describe-volumes |
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VOLUME vol-cd2dc8a4 128 us-east-1a available 2008-08-29T01:07:22+0000 |
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</nowiki></pre> |
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== Attach volume to an instance == |
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# Get the instance name |
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<pre><nowiki> |
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# ec2-describe-instances |
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RESERVATION r-9f5c9ff6 367161194499 default |
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INSTANCE i-577aae3e ami-43ab4f2a ec2-75-101-129-154.compute-1.amazonaws.com domU-12-31-39-00-A2-02 .compute-1.internal running bashlinux-general-server-keypair 0 m1.small 2008-06-20T01:57:42+0000 us-east-1a |
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</nowiki></pre> |
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# Attach the volume using the instance name `i-577aae3e` obtained from the last command, note that `/dev/sdb` must not exist, in case it does, then just use another name not used yet |
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<pre><nowiki> |
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# ec2-attach-volume vol-cd2dc8a4 -i i-577aae3e -d /dev/sdb |
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ATTACHMENT vol-cd2dc8a4 i-577aae3e /dev/sdb attaching 2008-08-29T01:18:06+0000 |
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</nowiki></pre> |
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# Login into the instance |
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<pre><nowiki> |
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# ssh -i .ssh/bashlinux-general-server-keypair [email protected] |
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</nowiki></pre> |
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# Format the new attached drive `/dev/sdb` |
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<pre><nowiki> |
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[root@ec2 ~]# mkfs -t ext3 /dev/sdb |
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mke2fs 1.39 (29-May-2006) |
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/dev/sdb is entire device, not just one partition! |
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Proceed anyway? (y,n) y |
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Filesystem label= |
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OS type: Linux |
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Block size=4096 (log=2) |
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Fragment size=4096 (log=2) |
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16777216 inodes, 33554432 blocks |
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1677721 blocks (5.00%) reserved for the super user |
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First data block=0 |
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Maximum filesystem blocks=0 |
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1024 block groups |
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32768 blocks per group, 32768 fragments per group |
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16384 inodes per group |
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Superblock backups stored on blocks: |
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32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, |
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4096000, 7962624, 11239424, 20480000, 23887872 |
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Writing inode tables: done |
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Creating journal (32768 blocks): done |
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Writing superblocks and filesystem accounting information: done |
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This filesystem will be automatically checked every 38 mounts or |
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180 days, whichever comes first. Use tune2fs -c or -i to override. |
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</nowiki></pre> |
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# Mount the new partitioned drive |
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<pre><nowiki> |
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[root@ec2 ~]# mkdir -p /mnt/storage |
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[root@ec2 ~]# mount /dev/sdb /mnt/storage |
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</nowiki></pre> |
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# Check new partition space |
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<pre><nowiki> |
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[root@ec2 ~]# df -h |
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Filesystem Size Used Avail Use% Mounted on |
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/dev/sda1 4.0G 4.0G 0 100% / |
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none 851M 0 851M 0% /dev/shm |
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/dev/sda2 147G 388M 139G 1% /mnt |
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/dev/sdb 126G 188M 120G 1% /mnt/storage |
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</nowiki></pre> |
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== Remove volume == |
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# Login into the instance |
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<pre><nowiki> |
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# ssh -i .ssh/bashlinux-general-server-keypair [email protected] |
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</nowiki></pre> |
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# Unmount the volume |
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<pre><nowiki> |
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[root@ec2 log]# umount /mnt/storage |
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</nowiki></pre> |
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# Check the volume was unmounted |
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<pre><nowiki> |
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[root@ec2 log]# df -h |
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Filesystem Size Used Avail Use% Mounted on |
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/dev/sda1 4.0G 4.0G 0 100% / |
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none 851M 0 851M 0% /dev/shm |
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/dev/sda2 147G 388M 139G 1% /mnt |
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</nowiki></pre> |
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# Logout from the instance |
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<pre><nowiki> |
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[root@ec2 log]# exit |
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</nowiki></pre> |
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# Detach the volume |
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<pre><nowiki> |
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# ec2-detach-volume vol-cd2dc8a4 -i i-577aae3e -d /dev/sdb |
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ATTACHMENT vol-cd2dc8a4 i-577aae3e /dev/sdb detaching 2008-08-29T01:18:06+0000 |
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</nowiki></pre> |
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# Delete volume |
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<pre><nowiki> |
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# ec2-delete-volume vol-cd2dc8a4 |
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VOLUME vol-cd2dc8a4 |
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</nowiki></pre> |
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# Check deleted volume |
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<pre><nowiki> |
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# ec2-describe-volumes |
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VOLUME vol-cd2dc8a4 128 us-east-1a deleting 2008-08-29T01:07:22+0000 |
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</nowiki></pre> |
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Latest revision as of 23:22, 9 June 2015
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