Difference between revisions of "Datera"
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m (Alternative SSH access.) |
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</syntaxhighlight> | </syntaxhighlight> | ||
| + | = Alternative SSH Access = | ||
| + | |||
| + | <syntaxhighlight> | ||
| + | [root@localhost opt]# for ip in $(dcp -l | grep 'int IP:' | awk '{print $NF}') ; do ssh -p 2222 root@$ip 'nvmadm inventory agiga' | grep backup_count ; done | ||
| + | "backup_count" : 1, | ||
| + | "backup_count" : 1, | ||
| + | "backup_count" : 1, | ||
| + | [root@localhost opt]# for ip in $(dcp -l | grep 'int IP:' | awk '{print $NF}') ; do ssh -p 2222 root@$ip 'nvmadm inventory agiga' | grep backup_mode ; done | ||
| + | "backup_mode" : 24, | ||
| + | "backup_mode" : 24, | ||
| + | "backup_mode" : 24, | ||
| + | </syntaxhighlight> | ||
= Disk Whitelisting = | = Disk Whitelisting = | ||
Latest revision as of 16:07, 22 February 2017
Current Cluster Configuration
The OpenHPC headnode is lc (172.28.1.179)
Management network IPs: 10.10.10.[221-223]/24
Install from USB
From a USB installation, the mgt1/mgt2 and netA1/netA2 MACs might be reverse and simlinks must be corrected:
ls -l /var/lib/datera-net-pci-order/
lrwxrwxrwx 1 root root 5 Jan 25 09:49 00:02:c9:9f:7a:20 -> netA1
lrwxrwxrwx 1 root root 5 Jan 25 09:49 00:02:c9:9f:7a:21 -> netA2
lrwxrwxrwx 1 root root 4 Jan 25 09:49 00:25:90:fa:7b:0a -> mgt1
lrwxrwxrwx 1 root root 4 Jan 25 09:49 00:25:90:fa:7b:0b -> mgt2SSH Access
ssh admin@10.10.10.221 # (Management network.) Default password "password". Initialized password "ADMIN" or "admin".
Use command "shell":
Local >> shell # Password: HodHeixGittreboot --all --wipe # wipe data and control dataImport Configuration
Configuration can be imported and a password is provided (recommended password for testing: "admin").
{
"system": {
"name": "ADMIN",
"callhome_enabled": true,
"http_proxy": {
"enabled": false
},
"dns": {
"search_domains": [],
"servers": [
"8.8.8.8"
]
},
"ntp_servers": [
"0.uk.pool.ntp.org"
],
"network": {
"mapping": {
"access_1": "netA1",
"mgmt_1": "mgt1",
"internal_1": "netA2"
},
"internal_network": {
"network_paths": {
"internal_1": {
"netmask": 24,
"mtu": 1500,
"vlan": 0,
"start_ip": "10.218.126.1",
"range": 64
}
}
},
"access_vip": {
"network_paths": {
"access_1": {
"netmask": 24,
"mtu": 1500,
"vlan": 0,
"ip": "10.172.206.252"
}
}
},
"mgmt_vip": {
"network_paths": {
"mgmt_1": {
"netmask": 24,
"mtu": 1500,
"vlan": 0,
"ip": "10.10.10.252",
"gateway": "10.10.10.1"
}
}
}
}
},
"access_network_ip_pools": {
"default": {
"network_paths": {
"access_1": {
"netmask": 24,
"mtu": 1500,
"vlan": 0,
"start_ip": "10.172.206.1",
"range": 64
}
}
}
},
"version": "1.0"
}Alternative SSH Access
[root@localhost opt]# for ip in $(dcp -l | grep 'int IP:' | awk '{print $NF}') ; do ssh -p 2222 root@$ip 'nvmadm inventory agiga' | grep backup_count ; done
"backup_count" : 1,
"backup_count" : 1,
"backup_count" : 1,
[root@localhost opt]# for ip in $(dcp -l | grep 'int IP:' | awk '{print $NF}') ; do ssh -p 2222 root@$ip 'nvmadm inventory agiga' | grep backup_mode ; done
"backup_mode" : 24,
"backup_mode" : 24,
"backup_mode" : 24,Disk Whitelisting
The fix is a little involved and requires modifying the file: /usr/bin/datera_storage_info.py. Please back this file up just in case before you modify it :)
there is a section which has
<python> if system_vendor == SUPERMICRO or \
DATERA in system_vendor or \
"Dell Inc" in system_vendor:
</python>
it needs to be changed to:
<python> if (system_vendor == SUPERMICRO or \
DATERA in system_vendor or \
"Dell Inc" in system_vendor) and hasLsiController():
</python>
This will make sure that it does not try to apply the default profile for super micro unless it also sees the LSI controller. In order for that modification to work we also need to add the function to find the LSI controller. The below function should be added to the same file "/usr/bin/datera_storage_info.py” just above "def main():”. There should be two spaces before and after this new function you add.
<python> def hasLsiController():
output = execute_command([LSPCI,
"-D"])
if output[0] != 0:
return False
for line in output[1].splitlines():
if 'LSI' in line and 'controller' in line:
return True
return False
</python>
Indentation is also important in python. To be 100% sure this works you can run the command by itself by executing '/usr/bin/datera_storage_info.py’ it should print out a bunch of information about the disks and not exit with error. If there is an error its probably indentation.
Please note, this needs to be done on each of the nodes, and for good measure I generally make the change on all the nodes in separate terminals, and then when its all done I quickly save them all, just to be sure they are all in sync and seeing the same thing at all times.
iSCSI
Once iscsiadm has been used, the iSCSI Qualified Name (IQN) can be found in /etc/iscsi/
When authentication is not enabled, it's easy to access provisioned storage, where the ip is taken from the Datera GUI:
iscsiadm -m discovery -t st -p ip:portLogging in:
iscsiadm --m node -T iqn.2007-06.com.test.cluster1:storage.cluster1 --portal 172.16.48.175:3260 -lDisabling a target:
There are three ways to disable or delete an iSCSI target.
First, to disable an iSCSI target:
iscsiadm --m node -T iqn.2007-06.com.test.cluster1:storage.cluster1 --portal 172.16.48.175:3260 -uSecond, it is possible to delete the target's record ID:/p>
iscsiadm -m node -o delete -T iqn.2007-06.com.test.cluster1:storage.cluster1 --portal 172.16.48.175:3260https://access.redhat.com/articles/9883
Formatting
[root@head ~]# time mkfs.xfs /dev/device
specified blocksize 4096 is less than device physical sector size 1048576
switching to logical sector size 512
meta-data=/dev/device isize=256 agcount=4, agsize=67108864 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=268435456, imaxpct=5
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=131072, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
real 0m14.929s
user 0m0.000s
sys 0m0.228s