Subsections


4.3 How to use terminal workstations

Terminal workstations consist of 13 workstations located in the open-use room of the Subaru building (sbt[01-13].ana.nao.ac.jp) and 9 workstations located in the room 101 of the ALMA building (alt[01-09].ana.nao.ac.jp). The purpose of these workstations is to reduce and analyze astronomy data and to access the interactive data analysis servers. Remote login to the terminal workstations is not allowed, so please come to the open-use room of the Subaru building or the room 101 of the ALMA building if you would like to use the terminal workstations.


4.3.1 System configuration

Terminal workstations consist of 22 workstations (HP Z840 Workstation). 13 workstations are located in the open-use room of the Subaru building and 9 workstations are located in the room 101 of the ALMA building in the Mitaka campus. Each workstation is installed the Red Hat Enterprise Linux 7.
Table 4.8: Specification of the terminal workstation located in the open-use room of the Subaru building
Host name sbt[01-13].ana.nao.ac.jp
Machine HP Z840 Workstation
Quantity 13
OS Red Hat Enterprise Linux 7
CPU Intel Xeon E5 2637 V4 3.4 GHz 4 core
RAM DDR4 2400 RDIMM 64GB
HDD of the local disk region 1 TB 3.5 inch SATA 7200 rpm
Size of the local disk region 500 GB
Table 4.9: Specification of the terminal workstation located in the room 101 of the ALMA building
Host name alt[01-09].ana.nao.ac.jp
Machine HP Z840 Workstation
Quantity 9
OS Red Hat Enterprise Linux 7
CPU Intel Xeon E5 2637 V4 3.4 GHz 4 core
RAM DDR4 2400 RDIMM 64GB
HDD of the local disk region 1 TB 3.5 inch SATA 7200 rpm
Size of the local disk region 500 GB


4.3.2 How to login

You need an account and a password of the MDAS when you use the terminal workstations. The login steps are as follows.
  1. Input your account name into the username field.
  2. After that, input your password into the password field.


4.3.3 Disk spaces

The following disk spaces are available on the terminal workstations.
Table 4.10: Disk spaces available on the terminal workstations
Space Mount point Size per a mount point Soft/Hard limit Retention period
User home directory (NFS) /home[01-02] 55TB 140GB/150GB As long as your account in force
Large volume file system (NFS) /lfs[01-16] 102TB 30TB/32TB 12 months
Local disk space of the terminal workstations /work 500GB None/None Under consideration

Disk quotas

The MDAS implements disk quotas in order to set a limit on the disk usage of each user. The soft limit and hard limit of the quotas are different in each disk space. If an amount of your data amounts to the limit, then any software do not run normally, so you should copy or remove your data before an amount of your data amounts the limit.


4.3.4 Network access control

You cannot access the terminal workstations remotely and you cannot access (i.e. ssh, scp, or rsync) computers on the NAOJ network from the terminal workstations for a security measure. If you would like to copy or move data from the terminal workstations to your computer, please use your own USB memory or USB HDD.

ADC
2019-07-19