Hi all,
I'm new to ceph but I'll try it soon. It looks really excellent, keep
up the good work !!
>From my experience with a commercial solution of a scale out NAS
cluster (Isilon, not to name it), this is a really important feature
and attention should be put on that as well :)
What about an Isilon's like cluster status ?
Here is the output for the whole cluster + information for a specific
node (sorry for badly formatted text).
Could it be implemented somewhat like this in Ceph ? Simple & precise.
# isi status
Cluster Name: my-cluster-1
Cluster Health: [ OK ]
Available: 69T (11%)
Health Throughput (bits/s)
ID | IP Address |D-A--S-R| In Out Total | Used / Capacity
----+-----------------+--------+-------+-------+-------+-----------------------
1 | XX.YY.Z.1 | [ OK ] | 374M | 258M | 631M | 19T / 22T (89%)
2 | XX.YY.Z.2 | [ OK ] | 0 | 0 | 0 | 19T / 22T (88%)
3 | XX.YY.Z.3 | [ OK ] | 1.7M | 0 | 1.7M | 19T / 22T (89%)
4 | XX.YY.Z.4 | [ OK ] | 16K | 177M | 177M | 19T / 22T (88%)
5 | XX.YY.Z.5 | [ OK ] | 581M | 147M | 729M | 19T / 22T (88%)
6 | XX.YY.Z.6 | [ OK ] | 12M | 151M | 163M | 19T / 22T (89%)
7 | XX.YY.Z.7 | [ OK ] | 1.1K | 107K | 108K | 19T / 22T (89%)
8 | XX.YY.Z.8 | [ OK ] | 9.0K | 89M | 89M | 19T / 22T (88%)
9 | XX.YY.Z.9 | [ OK ] | 7.5M | 201K | 7.7M | 19T / 22T (88%)
10 | XX.YY.Z.10 | [ OK ] | 0 | 933M | 933M | 19T / 22T (88%)
11 | XX.YY.Z.11 | [ OK ] | 1.9K | 170M | 170M | 19T / 22T (88%)
12 | XX.YY.Z.12 | [ OK ] | 992 | 948M | 948M | 19T / 22T (89%)
13 | XX.YY.Z.13 | [ OK ] | 6.2M | 161M | 167M | 19T / 22T (89%)
14 | XX.YY.Z.14 | [ OK ] | 80M | 228M | 308M | 19T / 22T (88%)
15 | XX.YY.Z.15 | [ OK ] | 762 | 101M | 101M | 19T / 22T (88%)
16 | XX.YY.Z.16 | [ OK ] | 1.6K | 178K | 180K | 19T / 22T (89%)
17 | XX.YY.Z.17 | [ OK ] | 22M | 441M | 463M | 19T / 22T (88%)
18 | XX.YY.Z.18 | [ OK ] | 0 | 303M | 303M | 19T / 22T (88%)
19 | XX.YY.Z.19 | [ OK ] | 1.0M | 334M | 335M | 19T / 22T (88%)
20 | XX.YY.Z.20 | [ OK ] | 3.1M | 17M | 20M | 19T / 22T (88%)
21 | XX.YY.Z.21 | [ OK ] | 127M | 6.6M | 133M | 19T / 22T (88%)
22 | XX.YY.Z.22 | [ OK ] | 29M | 126M | 155M | 19T / 22T (89%)
23 | XX.YY.Z.23 | [ OK ] | 0 | 0 | 0 | 19T / 22T (88%)
24 | XX.YY.Z.24 | [ OK ] | 0 | 74M | 74M | 19T / 22T (88%)
25 | XX.YY.Z.25 | [ OK ] | 765 | 0 | 765 | 19T / 22T (88%)
26 | XX.YY.Z.26 | [ OK ] | 380K | 99M | 100M | 19T / 22T (88%)
27 | XX.YY.Z.27 | [ OK ] | 12M | 136M | 148M | 19T / 22T (88%)
28 | XX.YY.Z.28 | [ OK ] | 1.1K | 0 | 1.1K | 19T / 22T (88%)
29 | XX.YY.Z.29 | [ OK ] | 5.4M | 1.1G | 1.1G | 19T / 22T (88%)
-------------------------------+-------+-------+-------+-----------------------
Cluster Totals: | 1.3G | 6.0G | 7.3G | 558T / 627T (88%)
Health Fields: D = Down, A = Attention, S = Smartfailed, R = Read-Only
No Alerts.
--> Then, to get the status of a specific node (here : I want to know
on node 29 of the cluster) :
# isi status -n 29
Node LNN: 29
Node ID: 39
Node Name: my-cluster-1-29
Node IP Address: XX.YY.Z.29
Node Health: [ OK ]
Node SN: 1234567890
Node Capacity: 22T
Available: 2.4T (11%)
Used: 19T (88%)
Network Status:
See 'isi networks list interfaces -v' for more detail or man(8) isi.
Internal: 2 IB network interfaces (2 up, 0 down)
External: 2 GbE network interfaces (2 up, 0 down)
1 Aggregated network interfaces (0 up, 1 down)
Disk Drive Status:
Bay 1 <12> Bay 2 <15> Bay 3 <18> Bay 4 <21>
13Mb/s 12Mb/s 6.7Mb/s 6.0Mb/s
[HEALTHY] [HEALTHY] [HEALTHY] [HEALTHY]
Bay 5 <13> Bay 6 <16> Bay 7 <19> Bay 8 <22>
4.5Mb/s 15Mb/s 16Mb/s 8.5Mb/s
[HEALTHY] [HEALTHY] [HEALTHY] [HEALTHY]
Bay 9 <14> Bay 10 <17> Bay 11 <20> Bay 12 <23>
11Mb/s 8.3Mb/s 6.6Mb/s 5.0Mb/s
[HEALTHY] [HEALTHY] [HEALTHY] [HEALTHY]
Bay 13 <3> Bay 14 <6> Bay 15 <9> Bay 16 <0>
7.2Mb/s 6.1Mb/s 7.3Mb/s 8.2Mb/s
[HEALTHY] [HEALTHY] [HEALTHY] [HEALTHY]
Bay 17 <4> Bay 18 <7> Bay 19 <10> Bay 20 <1>
6.5Mb/s 12Mb/s 3.1Mb/s 3.0Mb/s
[HEALTHY] [HEALTHY] [HEALTHY] [HEALTHY]
Bay 21 <5> Bay 22 <8> Bay 23 <11> Bay 24 <2>
8.2Mb/s 6.7Mb/s 6.3Mb/s 6.8Mb/s
[HEALTHY] [HEALTHY] [HEALTHY] [HEALTHY]
2011/5/26 Fyodor Ustinov <ufm@xxxxxx>:
> Hi!
>
> How to get information about status of each server in cluster?
>
> #ceph osd stat
> 2011-05-26 15:07:05.103621 mon <- [osd,stat]
> 2011-05-26 15:07:05.104201 mon0 -> 'e413: 6 osds: 5 up, 5 in' (0)
>
> I see - in cluster 6 osd servers and now up only 5. How do I know which
> server is down?
>
> More global question - how to monitor the state of servers in a cluster?
>
> WBR,
> Fyodor.
>
> P.S. JFYI: key "-s" do not described in manual page about ceph command.
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