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How to map device to mount point?

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Operating Systems Solaris How to map device to mount point?
# 1  
Old 10-14-2018
How to map device to mount point?
Solaris 11,
iostat -xncz 5

Code:
                    extended device statistics
 r/s    w/s   kr/s   kw/s wait actv wsvc_t asvc_t  %w  %b device


    6.0   18.2  226.7  205.6  0.0  0.0    0.0    1.7   0   3 vdc206
    6.8   39.6  252.6  341.0  0.0  0.1    0.0    1.5   0   4 vdc207
    0.2   30.0    9.4  266.9  0.0  0.0    0.0    1.1   0   1 vdc208
    6.6   19.4  242.2  330.1  0.0  0.0    0.0    1.9   0   4 vdc209
    6.8   36.4  230.9  371.2  0.0  0.1    0.0    1.4   0   4 vdc210

the mounts like,



df

Code:
...     
/S0T1          (ds/S0T1       ): 7815505 blocks  7815505 files     
/S0Q1          (ds/S0Q1       ): 9602502 blocks  9602502 files    
...

I may want to know how these devices, vdc* mapped to the mounts, /S0*?


Thanks!
Last edited by Don Cragun; 10-14-2018 at 03:15 PM.. Reason: Change QUOTE tags to CODE tags.
# 2  
Old 10-14-2018
Assuming this is ZFS, use:

Code:
zpool iostat -v

to get pool and underlying devices statistics and

Code:
zfs list

to figure out which pool a file system use.

By the way, please use CODE tags, not QUOTE ones to show code samples.
This User Gave Thanks to jlliagre For This Post:
jim mcnamara
# 3  
Old 10-14-2018
Code:
 zpool iostat -v
             capacity     operations    bandwidth
pool      alloc   free   read  write   read  write
--------  -----  -----  -----  -----  -----  -----
ds        2.99T  1.46T    113    147  13.4M  3.90M
  c1d212   667G   349G     23     30  2.90M   850K
  c1d213   666G   350G     23     30  2.89M   845K
  c1d214   668G   348G     23     30  2.90M   856K
  c1d215   666G   350G     23     30  2.89M   839K
  c1d216   398G  98.3G     18     25  1.84M   598K
--------  -----  -----  -----  -----  -----  -----
rpool     32.6G  26.9G      0      5  36.5K  36.7K
  c1d203  32.6G  26.9G      0      5  36.5K  36.7K
--------  -----  -----  -----  -----  -----  -----


I wanted the above results related the devices vdc* shown I/O performance -xncz , how is c1d* related to vdc*?



zfs list


there are too many shown :


ds/S0*

And no shown related to c1d* nor vdc*



Thanks!
# 4  
Old 10-14-2018
What says:

Code:
fstyp /S0T1

?

The devices in vdc* (virtual disk client) are virtualized disks, the c1d* devices are symbolic links to slices, partitions on disk (whether virtualized or not).

You are running in a logical (guest) domain and the real devices are connected to a control or i/o domain (another Solaris instance).

See Introduction to Virtual Disks -
Oracle(R) VM Server for SPARC 3.6 Administration Guide
# 5  
Old 10-14-2018
Hello jilliagre,
due to our security rule , i cannot use real name for the mount.


therefore, the real name replaced with </mount> for showing here

fstyp /</mount>


got
unknown_fstyp (no matches)



# id
uid=0(root) gid=0(root)


I am not an OS admin rather than application admin, and i have the root access.
I want to investigate I/O issue with iostat , need to know what these iostat's virtual disk vdc* mapped with the mount points which applications and databases are located.
# 6  
Old 10-14-2018
Hmm, you might be using vxvm/vxfs, not my piece of cake...

Someone else, familiar with this product might help.

In any case, the iostat numbers you posted do not look to show any issue.
# 7  
Old 10-14-2018
Code:
In any case, the iostat numbers you posted do not look to show any issue.

Correct, it is for test server, not the production server which has the performance issue. The test and the production are setup the same.

I wanted to show the people how to utilize iostat to identify the I/O with the mount points.
But I do not have the root access on production.
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