20 February, 2023
Notice of system maintenance
The system will be unavailable during the following period because of a system maintenance.
From 10:00 to 11:00 on Monday, 27th February 2023 JST.
13 December, 2022
System maintenance was completed
Thank you for your cooperation.
09 December, 2022
Notice of system maintenance
The system will be unavailable during the following period because of a system maintenance.
From 9:00 to 17:00 on Tuesday, 13th December 2022 JST.
06 December, 2022
System maintenance was completed
Thank you for your cooperation.
29 November, 2022
Notice of system maintenance
The login node will be unavailable during the following period because of a system maintenance.
From 11:00 to 12:00 on Monday, 5th December 2022 JST.
07 January, 2022
We have started accepting applications for general users not limited to HSC
If you are an general user excepting for the HSC open-use observer of the current semester, please apply from the Application for General Use.
29 November, 2021
Notice of system maintenance
The LSC will be suspended during the following period because of a system maintenance.
From 09:00 to 17:30 on Wednesday, 15th December 2021 JST.
The operation restart time may change depending on the work situation.
19 October, 2021
Compute-nodes will be suspended due to a scheduled power cut
Due to a scheduled power cut (11/13) at the Mitaka Campus of the NAOJ, the system will be unavailable for the following period:
    from 3:00 pm on Friday, November 12, 2021 (JST)
        to 5:00 pm on Monday, November 15, 2021 (JST).
Before resuming operation, maintenance on the login node and others will be performed.
Therefore, the restart time may be slightly different.
30 August, 2021
Notice of system maintenance
This is a notice about the next system maintenance.
Date: Monday, August 30, 2021 11:00 - 17:00 JST
The operation restart time may change depending on the work situation.
During the above period, the system will be unavailable.
In this maintenance, the memory expansion (+256GB) work of the login node and the compute node an07 will be performed.
02 August, 2021
System maintenance was completed
Thank you for your cooperation.
30 July, 2021
Notice of emergency system maintenance
This is an emergency maintenance notice for dealing with a vulnerability in the Linux kernel.
The system will be unavailable during the following period.
Date: Monday, August 2, 2021 10:00 - 12:00 JST
The operation restart time may change depending on the work situation.
06 January, 2021
Compute-nodes will be suspended due to an electrical work
The compute nodes an[03-94] will be suspended
from 11:00 to 16:00 on 13 January 2021 JST,
but other nodes will be available.
09 October, 2020
We have started accepting applications for general users
If you are an general user excepting for the HSC open-use observer of the current semester, please apply from the Application for General Use.
13 April, 2020
System maintenance was completed
Thank you for your cooperation.
10 April, 2020
Notice of system maintenance
The LSC will be suspended during the following period because of an system maintenance.
From 10:00 to 11:00 on 13th April 2020 JST.
It may finish earlier or later than expected.
23 March, 2020
System maintenance was completed
Thank you for your cooperation.
23 March, 2020
Notice of emergency system maintenance
The LSC will be suspended during the following period because of an emergency system maintenance.
From 14:00 to 16:00 on 23rd March 2020 JST.
It may finish earlier or later than expected.
13 March, 2020
Communication failure had been occurred (already resolved)
A router on the NAOJ network had some trouble during the period between 00:30 and 08:30 on 13th March (JST). The trouble have been resolved. We apologize for the inconvenience this has caused you.
04 March, 2020
Communication failure had been occurred (already resolved)
LSC had not been available during the period between 12:10 and 16:50 on 04th March (JST) because of a network trouble. This trouble does not affect the submitted jobs. We apologize for the inconvenience this has caused you.
28 January, 2020
System maintenance was completed
Thank you for your cooperation.
10 January, 2020
Notice of system maintenance
The LSC will be suspended during the following period because of a system maintenance.
From 09:00 to 17:00 on 27th January 2020 JST (assumed plan).
24 December, 2019
LSC help desk will be in winter recess
The LSC help desk will be closed during the following period.
From 28th December 2019 to 5th January 2020 (JST).
Although users will be able to use the LSC during the above period, we will not be able to deal with any troubles.
19 December, 2019
We have released a website of the LSC.