cluster:151
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cluster:151 [2016/11/21 14:33] hmeij07 [Resync Data] |
cluster:151 [2016/12/01 14:02] hmeij07 [Mirror Meta] |
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| A document for me to recall and make notes of what I read in the manual pages and what needs testing. | A document for me to recall and make notes of what I read in the manual pages and what needs testing. | ||
| - | Basically during the Summer of 2016 I investigated if the HPCC could afford enterprise level storage. I wanted 99.999% uptime, snapshots, high availability and other goodies such as parallel NFS. Netapp came the closest but, eh, still at $42K lots of other options show up. The story is detailed | + | Basically during the Summer of 2016 I investigated if the HPCC could afford enterprise level storage. I wanted 99.999% uptime, snapshots, high availability and other goodies such as parallel NFS. Netapp came the closest but, eh, still at $42K lots of other options show up. That story is detailed at [[cluster: |
| This page is best read from the bottom up. | This page is best read from the bottom up. | ||
| - | ==== cluster idea ==== | + | ==== beeGFS |
| - | * Storage servers: buy 2 now 4k+4k then 3rd in July 4k? | + | * Storage servers: |
| + | * buy 2 with each 12x2TB slow disk, Raid 6, 20T usable (clustered, parallel file system) | ||
| + | * create 2 6TB volumes on each, quota at 2TB via XFS, 3 users/ | ||
| + | * only $HOME changes to ''/ | ||
| + | * create 2 buddymirrors; | ||
| + | * on UPS | ||
| + | * on Infiniband | ||
| - | * move test users over on 2 nodes, test, only change is $HOME | + | * Client servers: |
| + | * all compute/ | ||
| - | * Home cluster | + | * Meta servers: |
| - | * cottontail (mngt+admingiu) | + | * cottontail2 (root meta, on Infiniband) plus n38-n45 nodes (on Infiniband) |
| - | * 2-3 new units storage (+snapshots/meta backup) | + | * all mirrored (total=9) |
| - | * cottontail2 meta + n38-n45 meta, all mirrored | + | * cottontail2 on UPS |
| + | |||
| + | * Management and Monitor servers | ||
| + | * cottontail (on UPS, on Infiniband) | ||
| + | |||
| + | * Backups (rsnapshot.org via rsync daemons [[cluster: | ||
| + | * sharptail:/ | ||
| + | * serverA:/mnt/ | ||
| + | * serverB:/ | ||
| + | |||
| + | * Costs (includes 3 year NBD warranty) | ||
| + | * Microway $12,500 | ||
| + | * CDW | ||
| ==== beegfs-admin-gui ==== | ==== beegfs-admin-gui ==== | ||
| * '' | * '' | ||
| + | |||
| + | ==== upgrade ==== | ||
| + | |||
| + | * [[http:// | ||
| + | * New feature - High Availability for Metadata Servers (self-healing, | ||
| + | |||
| + | A bit complicated. | ||
| + | |||
| + | * Repo base URL baseurl=http:// | ||
| + | * [ ] beegfs-mgmtd-6.1-el6.x86_64.rpm | ||
| + | * '' | ||
| + | * beegfs-mgmtd.x86_64 | ||
| + | * '' | ||
| + | * http:// | ||
| + | |||
| + | |||
| + | So the wget/rpm approach (list all packages present on a particular node else you will get a dependencies failure!) | ||
| + | |||
| + | < | ||
| + | |||
| + | # get them all | ||
| + | wget http:// | ||
| + | |||
| + | # client and meta node | ||
| + | rpm -Uvh ./ | ||
| + | |||
| + | # updated? | ||
| + | [root@cottontail2 beegfs_6]# beegfs-ctl | head -2 | ||
| + | BeeGFS Command-Line Control Tool (http:// | ||
| + | Version: 6.1 | ||
| + | |||
| + | #Sheeesh | ||
| + | </ | ||
| + | |||
| ==== Resync Data #2 ==== | ==== Resync Data #2 ==== | ||
| Line 55: | Line 108: | ||
| # define mirrrogroups | # define mirrrogroups | ||
| - | [root@cottontail2 ~]# beegfs-ctl --addmirrorgroup --primary=21701 --secondary=13601 --groupid=1 | + | [root@cottontail2 ~]# beegfs-ctl --addmirrorgroup |
| - | [root@cottontail2 ~]# beegfs-ctl --addmirrorgroup --primary=13602 --secondary=21702 --groupid=2 | + | [root@cottontail2 ~]# beegfs-ctl --addmirrorgroup |
| [root@cottontail2 ~]# beegfs-ctl --listmirrorgroups | [root@cottontail2 ~]# beegfs-ctl --listmirrorgroups | ||
| Line 87: | Line 140: | ||
| 3678 | 3678 | ||
| - | # redefine | + | # with numtargets=1 beegfs still writes to all primary targets found in all buddygroups |
| - | # resync | + | |
| + | # rebuild test servers with from scratch with numparts=2 | ||
| + | # drop hmeij/ into home1/ and obtain slightly more files (couple of 100s), not double the amount | ||
| + | # /home/hmeij has 7808 files in it which gets split over primaries but numparts=2 would yield 15,616 files? | ||
| + | # drop another copy in home2/ and file counts double to circa 7808 | ||
| + | [root@cottontail2 ~]# beegfs-ctl --getentryinfo | ||
| + | Path: /home1 | ||
| + | Mount: / | ||
| + | EntryID: 0-583C50A1-FA | ||
| + | Metadata node: cottontail2 [ID: 250] | ||
| + | Stripe pattern details: | ||
| + | + Type: Buddy Mirror | ||
| + | + Chunksize: 512K | ||
| + | + Number of storage targets: desired: 2 | ||
| + | [root@cottontail2 ~]# beegfs-ctl --getentryinfo | ||
| + | Path: /home2 | ||
| + | Mount: / | ||
| + | EntryID: 1-583C50A1-FA | ||
| + | Metadata node: cottontail2 [ID: 250] | ||
| + | Stripe pattern details: | ||
| + | + Type: Buddy Mirror | ||
| + | + Chunksize: 512K | ||
| + | + Number of storage targets: desired: 2 | ||
| + | |||
| + | Source: /home/hmeij 7808 files in 10G | ||
| + | |||
| + | TargetID | ||
| + | ======== | ||
| + | | ||
| + | | ||
| + | | ||
| + | | ||
| + | [root@cottontail2 ~]# rsync -ac --bwlimit=2500 /home/hmeij / | ||
| + | [root@cottontail2 ~]# rsync -ac --bwlimit=2500 /home/hmeij / | ||
| + | TargetID | ||
| + | ======== | ||
| + | | ||
| + | | ||
| + | | ||
| + | | ||
| + | |||
| + | # first rsync drops roughly 5G in both primaries which then get copied to secondaries. | ||
| + | # second rsync does the same so both storage servers loose 20G roughly | ||
| + | # now shut a storage server down and the whole filesystem can still be accessed (HA) | ||
| </ | </ | ||
| Line 284: | Line 380: | ||
| Content mirroring will require more disk space. Perhaps snapshots to another node is more useful, also solves backup issue. | Content mirroring will require more disk space. Perhaps snapshots to another node is more useful, also solves backup issue. | ||
| - | + | V6 does buddymirror meta mirroring [[http:// | |
| < | < | ||
| - | # enable meta mirroring, directory based | + | # 2015.03 |
| # change to 11/04/2016: used --createdir to make this home. | # change to 11/04/2016: used --createdir to make this home. | ||
| [root@n7 ~]# beegfs-ctl --mirrormd / | [root@n7 ~]# beegfs-ctl --mirrormd / | ||
| Line 293: | Line 389: | ||
| Mount: '/ | Mount: '/ | ||
| Operation succeeded. | Operation succeeded. | ||
| + | |||
| + | # V6.1 does it a root level not from a path | ||
| + | beegfs-ctl --addmirrorgroup --nodetype=meta --primary=38 --secondary=39 --groupid=1 | ||
| + | beegfs-ctl --addmirrorgroup --nodetype=meta --primary=250 --secondary=37 --groupid=2 | ||
| + | beegfs-ctl --mirrromd | ||
| # put some new content in | # put some new content in | ||
| Line 426: | Line 527: | ||
| * made easy [[http:// | * made easy [[http:// | ||
| * rpms pulled from repository via petaltail in '' | * rpms pulled from repository via petaltail in '' | ||
| + | * '' | ||
| + | * use '' | ||
| < | < | ||
cluster/151.txt · Last modified: 2016/12/06 15:14 by hmeij07
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