3. Storage system

In this system, in addition to the home directory, you can also use file systems such as the Lustre file system of the high-speed storage area, the SSD of the local scratch area, and the shared scratch area, BeeGFS On Demand, which creates the SSD for each job.

3.1. Home Directory

Up 25 GB of the home directory space is available per user. The following is an example of checking the HOME directory capacity of TESTUSER.

$ t3-user-info disk home
  uid name         b_size(GB) b_quota(GB)    i_files    i_quota
---------------------------------------------------------------
 2011 TESTUSER              7          25     101446    2000000

Of the 25 GB quota limit, 7 GB is used, regarding the inode limit, we can check the situation that we are using approximately 100,000 out of the 2 million quota limit.
Please note that new writing cannot be performed if the quota limit is exceeded.
Deleting the file so that it falls below the quota limit makes it possible to write again.
Even if you delete files, it rarely occurs that it keeps remaining in the quota limit. In that case, please wait for a day at maximum, the quota is recalculated and it returns to normal value.

3.2. High-speed storage area

The high-speed storage area consists of the Lustre file system and you can be used by purchasing it as a group disk.
Please refer to "TSUBAME portal User's Guide" for the method of purchasing group disk.
The following is an example of checking the capacity of the group disk of TESTGROUP.

$ t3-user-info disk group -g TESTGROUP
                                              /gs/hs0                                 /gs/hs1                                 /gs/hs2
      gid group_name                 size(TB) quota(TB)   file(M)  quota(M)  size(TB) quota(TB)   file(M)  quota(M)  size(TB) quota(TB)   file(M)  quota(M)
    -------------------------------------------------------------------------------------------------------------------------------------------------------
     xxxx TESTGROUP                      0.00         0      0.00         0     59.78       100      7.50       200      0.00         0      0.00         0

In the specified TESTGROUP group, only /gs/hs1 is purchased, about 60 TB of the 100 TB quota limit is used,
Regarding the inode limit, we can check the situation of using 7.5 million out of the 200 million quota limit.

3.3. Storage service (CIFS)

In TSUBAME 3.0, users can access the high-speed storage area from the Windows / Mac terminal in the university using the CIFS protocol.
You can access it with the following address.

\\gshs.t3.gsic.titech.ac.jp

It will be accessible with TSUBAME3.0 account and the password set in the portal.
When you access from Windows, please specify the TSUBAME domain as below.

UserName	TSUBAME\ (TSUBAME3.0 Account Name)
Password	(TSUBAME3.0 Account Password)

The folder name corresponds to /gs/hs0, /gs/hs1, /gs/hs2 of the compute node, and it is T3_HS0, T3_HS1, T3_HS2.
Please access the folder purchased as a group disk.