System Suspension
The MDAS will be suspended during the following days due to a planned power outage.
November 8, 13:00 - November 11, 18:00 (JST)
26 September, 2024
System Resumption
MDAS equipment rack relocation is complete, and the system is back in operation at 12:00.
10 September, 2024
System Suspension
The MDAS will be suspended during the following days due to the MDAS equipment racks relocation work.
September 25-27, 2024 (three days), 27th is a back-up day
30 August, 2024
Temporary closure of the open-use computer rooms
Due to bad weather caused by an approaching typhoon, the open-use computer rooms will be closed on the afternoon of August 30th.
19 August, 2024
System suspension
The MDAS is suspended during the following period due to the system maintenance.
From 09:00 to 21:00 on 19 August 2024 (JST).
16 August, 2024
Temporary closure of the open-use computer rooms
Due to bad weather caused by an approaching typhoon, the open-use computer rooms will be closed on the afternoon of August 16th.
7 August, 2024
About summer holidays
From 10 (Sat) to 15 (Thu) August, we will not be able to respond to users
or accept applications due to the summer holidays.
1 August, 2024
MDAS terminals operation resumed
The MDAS terminals in Subaru and ALMA open-use rooms are back in operation.
22 July, 2024
System is down due to a power outage
The sstem was down due to a power outage at the NAOJ Mitaka Campus, but was restored at around 10:30.
8 July, 2024
Various application pages reopen
We restarted accepting various applications for use.
4 July, 2024
New MDAS launched
System replacement has been done, and the new system begins the operation.
Some parts such as the terminals and software are still under construction.
28 June, 2024
Temporary suspension of terminal machines
Due to maintenance work for system replacement, the terminal machines in open-use rooms are temporarily unavailable.
21 June, 2024
Temporary suspension of various applications for use
We are temporarily stop accepting various applications, for the system replacement.
It will be restarted after the new system launch.
8 May, 2024
VPN Suspension (May 9)
We have an emergency maintenance work to address a vulnerability of the MDAS-VPN equipment.
9:00 - 9:30 am, May 9, 2024 (JST)
During this work, VPN connections will be unavailable.
18 April, 2024
Account update page closed
We closed the MDAS account update page for FY2024.
15 April, 2024
System maintenance was completed
Thank you for your cooperation.
12 April, 2024
Notice of the system maintenance and data deletion
The MDAS will be suspended during the following period because of the system maintenance.
From 09:00 to 21:00 on 12 April 2024 (JST).
Data deletion will be carried out on the following disk spaces:
/lfs01, /lfs02, /lfs04, /lfs06, /lfs07, /lfs08, /lfs09, /lfs10, /lfs11, /lfs12, /lfs13, /lfs15, /lfs16, /wkm11,/wkh02, /wkh04, /wkh11
6 March, 2024
Account update page open
We started accepting MDAS account update for FY2024. The deadline is 18 April.
15 January, 2024
System maintenance was completed
Thank you for your cooperation.
4 January, 2024
Notice of the system maintenance
The MDAS will be suspended during the following period because of the system maintenance.
From 09:00 to 21:00 on 15 January 2024 (JST).
No periodic data deletion will be performed this time.
6 November, 2023
Open-use computer room in Subaru building temporarily closed Nov 10
Open-use computer room in Subaru building will be closed all day on November 10 for system maintenance work.
25 October, 2023
System maintenance was completed
Thank you for your cooperation.
16 October, 2023
Notice of the system maintenance and data deletion
The MDAS will be suspended during the following period because of the system maintenance.
From 09:00 to 21:00 on 23 October 2023 (JST).
Data deletion will be carried out on the following disk spaces:
/lfs01, /lfs02, /lfs03, /lfs04, /lfs06, /lfs07, /lfs08, /lfs09, /lfs10, /lfs11, /lfs12, /lfs13, /lfs14, /lfs15, /lfs16, /wkh07, /wkh08
19 July, 2023
System maintenance was completed
Thank you for your cooperation.
11 July, 2023
Notice of system maintenance and data deletion
The MDAS will be suspended during the following period because of system maintenance.
From 09:00 to 21:00 on 18 July 2023 (JST).
Data deletion will be carried out on the following disk spaces:
/lfs01, /lfs02, /lfs03, /lfs04, /lfs05, /lfs06, /lfs07, /lfs08, /lfs09, /lfs10, /lfs11, /lfs12, /lfs13, /lfs14, /lfs15, /lfs16, /wkm02, /wkh07, /wkh12.
20 April, 2023
Account update page closed
We closed the MDAS account update page for FY2023.
18 April, 2023
System maintenance was completed
Thank you for your cooperation.
03 April, 2023
Notice of system maintenance and data deletion
The MDAS will be suspended during the following period because of system maintenance.
From 09:00 to 21:00 on 17 April 2023 (JST).
Data deletion will be carried out on the following disk spaces:
/lfs01, /lfs02, /lfs03, /lfs04, /lfs05, /lfs06, /lfs07, /lfs08, /lfs09, /lfs10, /lfs11, /lfs12, /lfs13, /lfs14, /lfs15, /lfs16, /wkh06, /wkh09, and /wkh10.
8 March, 2023
Account update page open
We started accepting MDAS account update for FY2023. The deadline is 20 April.
24 February, 2023
Account update for FY2023
Account update will begin on 8 March.
21 October, 2022
Change of the open-use rooms operation
From Oct. 21, open-use room in the Subaru bldg will be open in addition to the South open-use roomB.
7 July, 2022
Change of the open-use rooms operation
From 11th, Open-use room in South bldg will be open and a reservation will be required to use Subaru open-use room.
On-demand printing service has been closed.
20 April, 2022
Account update page closed
We closed the MDAS account update page for FY2022.
25 March, 2022
Restart of Subaru open-use room operation
As a semi-state of emergency has been lifted, Subaru open-use room is available for limited hours.
1 March, 2022
Account update page open
We started accepting MDAS account update for FY2022. The deadline is 20 April.
21 January, 2022
Subaru open-use room closed
As a Semi-State of Emergency is declared in Tokyo, Subaru open-use room will be closed from 24th January.
04 October, 2021
Restart of some open-use operations
With the lifting of the state of emergency, some operations are resumed.
04 October, 2021
About target disk spaces for the data deletion
In the next system maintenance scheduled for 18 October, data deletion will be carried out on the following disk spaces.
/lfs01, /lfs02, /lfs03, /lfs04, /lfs05, /lfs06, /lfs07, /lfs08, /lfs09, /lfs10, /lfs12, /lfs13, /lfs14, /lfs15, /lfs16 and /wkm02
03 August, 2021
The MDAS will be suspended
The repairing of kaim06 will be scheduled as follows.
* Replacement of FC card etc.
Date: 2:00pm -- 4:00pm on August 4 (JST, tomorrow)
* The server will be not available during the repairing.
We apologize for the short notice and the inconvenient. Thank you for your cooperation.
30 July, 2021
Emergency maintenance was completed
The emergent maintenance was finished.
MDAS is available at present.
The restoration work of kaim12:/wkm12 was completed too.
29 July, 2021
Notice of emergency maintenance
A vulnerability about Linux kernel was reported. We will perform an emergent maintenance of MDAS during the following period.
* In addition, a restoration work of kaim12:wkm12
will be performed at the same time. 9:00am--noon on July 30, 2021 (JST)
All computers of the analysis system will be unavailable during the period and login session will be disconnected.
We apologize for the short notice and the inconvenient. Thank you for your cooperation.
20 July, 2021
System maintenance was completed
Thank you for your cooperation.
05 July, 2021
About target disk spaces for the data deletion
In the next system maintenance scheduled for 19 July, data deletion will be carried out on the following disk spaces.
/lfs01, /lfs03, /lfs04, /lfs05, /lfs06, /lfs07, /lfs08, /lfs09, /lfs10, /lfs11, /lfs12, /lfs14
21 June, 2021
Notice of system maintenance and data deletion
The MDAS will be suspended during the following period because of a system maintenance.
From 09:00 to 21:00 on 19 July 2021 (JST).
Data deletion will be carried out on each disk space (/lfs*, /wkh*, /wkh*) exceeding 90% disk usage.
We will get in touch with you again after deciding the target disk spaces.
20 April, 2021
Account update page closed
We closed the MDAS account update page for FY2021.
20 April, 2021
System maintenance was completed
Thank you for your cooperation.
05 April, 2021
About target disk spaces for the data deletion
In the next system maintenance scheduled for 19 April, data deletion will be carried out on the following disk spaces.
/lfs01, /lfs02, /lfs03, /lfs05, /lfs06, /lfs08, /lfs13, /lfs15, /lfs16
1 April, 2021
Restart of some open-use operations
With the lifting of the state of emergency, some operations were resumed.
19 March, 2021
Notice of system maintenance and data deletion
The MDAS will be suspended during the following period because of a system maintenance.
From 09:00 to 21:00 on 19 April 2021 (JST).
Data deletion will be carried out on each disk space (/lfs*, /wkh*, /wkh*) exceeding 90% disk usage.
We will get in touch with you again after deciding the target disk spaces.
1 March, 2021
Account update page open
We started accepting MDAS account update for FY2021. The deadline is April 20.
24 February, 2021
Emergency maintenance was completed
Thank you for your cooperation.
19 February, 2021
Notice of emergency maintenance
The MDAS will be suspended during the following period because of a emergency maintenance.
From 10:00 to 12:00 on 24 February 2021 (JST).
18 January, 2021
System maintenance was completed
Thank you for your cooperation.
07 January, 2021
Change of the operations for open-use due to COVID-19
Due to the declaration of a state of emergency, some operations for open-use will be stopped again.
05 January, 2021
About target disk spaces for the data deletion
In the next system maintenance scheduled for 18 January, data deletion will be carried out on the following disk spaces.
/lfs01, /lfs02, /lfs04, /lfs05, /lfs06, /lfs07, /lfs08, /lfs09, /lfs10, /lfs11, /lfs12, /lfs14.
21 December, 2020
Notice of system maintenance and data deletion
The MDAS will be suspended during the following period because of a system maintenance.
From 09:00 to 21:00 on 18 January 2021 (JST).
Data deletion will be carried out on each disk space (/lfs*, /wkh*, /wkh*) exceeding 90% disk usage.
We will get in touch with you again after deciding the target disk spaces.
20 October, 2020
System maintenance was completed
Thank you for your cooperation.
05 October, 2020
About target disk spaces for the data deletion
In the next system maintenance scheduled for October 19, data deletion will be carried out on the following disk spaces.
/lfs01, /lfs04, /lfs06, /lfs07, /lfs09, /lfs10, /lfs12, /lfs13
23 September, 2020
Notice of system maintenance and data deletion
The MDAS will be suspended during the following period because of a system maintenance.
From 09:00 to 21:00 on 19 October 2020 (JST).
Data deletion will be carried out on each disk space (/lfs*, /wkh*, /wkh*) exceeding 90% disk usage.
We will get in touch with you agein after deciding the target disk spaces.
22 July, 2020
System maintenance was completed
Thank you for your cooperation.
06 July, 2020
About target disk spaces for the data deletion
In the next system maintenance scheduled for July 20, data deletion will be carried out on the following disk spaces.
/lfs01, /lfs02, /lfs05, /lfs07, /lfs08
/lfs10, /lfs12, /lfs13, /lfs14, /lfs15, /wkm11
23 June, 2020
Notice of a maintenance of the NAOJ network
The MDAS could be unavailable during the following period because of a maintenance of the NAOJ network.
From 20:00 to 24:00 on 27 June 2020 (JST).
From 20:00 to 24:00 on 04 July 2020 (JST).
We apologize for the inconvenience this may cause you.
22 June, 2020
Notice of system maintenance and data deletion
The MDAS will be suspended during the following period because of a system maintenance.
From 09:00 to 21:00 on 20 July 2020 (JST).
Data deletion will be carried out on each disk space (/lfs*, /wkh*, /wkh*) exceeding 90% disk usage.
We will get in touch with you agein after deciding the target disk spaces.
2 June, 2020
Resumed accepting account applications
We have resumed accepting new account applications.
26 May, 2020
The kaim05 is now available
We have completed the repair of the kaim05.
It is now available.
22 May, 2020
The kaim05 is now unavailable
The interactive data analysis server kaim05 is now unavailable because of the some troubles.
We don't know when the server will be restored at this time.
We'll let you know as soon as we get more information.
19 May, 2020
Maintenance to fix the issue on the NAOJ network system
MDAS would be unavailable during the following period because of the maintenance to fix the issue on the NAOJ network system.
From 20:00 to 22:00 on 23rd May 2020 (JST).
22 April, 2020
Account update page was closed
We closed the MDAS account update page for FY2020.
20 April, 2020
System maintenance was completed
Thank you for your cooperation.
14 April, 2020
Notice of the target disk spaeces from which the data is deleted
Data deletion will be carried out for the following disk spaces in the next system maintenance on 20th April.
/lfs01, /lfs02, /lfs04, /lfs05, /lfs06, /lfs07,
/lfs09, /lfs10, /lfs11, /lfs13, /lfs14 (updated: 2020/04/17)
07 April, 2020
The sytem operation for prevention of coronavirus infection.
In order to prevent the spread of new coronal infections, NAOJ staff will be working from home from April 8.
In response to this, we will close the open-use rooms and stop accepting new account applications.
01 April, 2020
The server kaim20 is now available
Memory replacement has been completed. Thank you for your cooperation.
31 March, 2020
The server kaim20 will be suspended
The server kaim20 will be suspended during the following period due to exchange of an memory.
From 14:00 to 17:00 on 01st April 2020 (JST).
19 March, 2020
Notice of system maintenance and data deletion
The MDAS will be suspended during the following period because of system maintenance.
From 09:00 to 21:00 on 20th April 2020 (JST).
Data deletion will be carried out on the disk spaces (/lfs*, /wkh*, /wkh*) exceeding 90% of disk usage.
The target disk spaces will be announced.
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)
MDAS had not been available during the period between 12:10 and 16:50 on 04th March (JST) because of a network trouble. We apologize for the inconvenience this has caused you.
2 March, 2020
Account update page open
We started accepting MDAS account update for FY2020. The deadline is April 22.
21 January, 2020
System maintenance was completed
Thank you for your cooperation.
07 January, 2020
About target disk spaces for the data deletion
Data deletion will be carried out for the following disk spaces in the next system maintenance.
/lfs01, /lfs02, /lfs03, /lfs05, /lfs06, /lfs07, /lfs08
/lfs09, /lfs10, /lfs11, /lfs12, /lfs14, /lfs15, /lfs16
20 December, 2019
Notice of system maintenance and data deletion
The MDAS will be suspended during the following period because of system maintenance.
From 09:00 to 21:00 on 20 January 2020 (JST).
Data deletion will be carried out for each disk space (lfs[01-16]) exceeding 90% of the total disk space.
We will announce target disk spaces later.
03 December, 2019
kaih11 is now available
Memory replacement has been completed. Thank you for your cooperation.
02 December, 2019
kaih11 will be suspended
Memory failure(16GB) has been occurred on kaih11. To replace the memory module, kaih11 will be unavailable during the following period.
From 13:30 to 14:30 on 03 December 2019 (JST).
11 November, 2019
Communication failure had been occurred (already resolved)
MDAS had not been available during the period between 18:53 12th November and 10:00 13th November (JST) because of a network trouble. We apologize for the inconvenience this has caused you.
21 October, 2019
System maintenance was completed
Thank you for your cooperation.
07 October, 2019
Notice of system maintenance and data deletion
The MDAS will be suspended during the following period because of the system maintenance.
From 09:00 to 21:00 on 21 October 2019 (JST).
The data on the following partitions will be deleted: /lfs01, /lfs03, /lfs09, /lfs12, /lfs14.
Please refer to this link for details about the data deletion.
16 July, 2019
System maintenance was completed
Thank you for your cooperation.
8 July, 2019
Communication failure had been occurred (already resolved)
This website and consult(atmark)ana.nao.ac.jp had not been available during the period between 16:25 06th July and 10:25 08th July (JST) because of a network trouble. If you sent an E-mail to consult during this period, please re-send your E-mail. We apologize for the inconvenience this has caused you.
2 July, 2019
Notice of system maintenance
The MDAS will be suspended during the following period because of the system maintenance.
From 09:00 to 21:00 on 16 July 2019 (JST).
Please refer to this link for details.
22 April, 2019
Account update page was closed
We closed the MDAS account update page for FY2019.
15 April, 2019
System maintenance was completed
Thank you for your cooperation.
02 April, 2019
Notice of system maintenance
The MDAS will be suspended during the following period because of the system maintenance.
From 09:00 to 21:00 on 15 April 2019 (JST).
Please refer to this link for details.
04 March, 2019
The MDAS was restarted
The construction in the server room was completed and we restarted the MDAS.
Thank you for your cooperation.
1 March, 2019
Account update page open
We started accepting MDAS account update for FY2019.
22 February, 2019
The MDAS will be suspended
The MDAS will be suspended during the following period because of construction in the server room.
From 08:30 to 13:00 on 4 February, 2019 (JST).
We apologized for the inconvenience.
21 January, 2019
System maintenance was completed
Thank you for your cooperation.
26 December, 2018
Notice of system maintenance
Next maintenance of the MDAS is scheduled from 09:00 to 21:00 on 21 January 2019 (JST). Please refer to this link for details.
21 December 2018
ADC open-use help desk will be in winter recess
Although the MDAS and open-use rooms will be available during the following period, we will not able to deal with any troubles on the MDAS and in the open-use rooms because of the winter recess.
From 29 December 2018 through 3 January 2019.
10 December, 2018
The MDAS was restarted
The power in the NAOJ Mitaka campus was back on and we restarted the MDAS.
Thank you for your cooperation.
22 November, 2018
The MDAS will be suspended
The MDAS will be suspended during the following period because of scheduled power outages in the NAOJ Mitaka campus.
From 07:00 to 21:00 on 8 December, 2018 (JST).
We apologized for the inconvenience.
13 November, 2018
Communication failure has been resolved
Communication failure in the NAOJ network has been resolved. Please contact NAOJ NETWORK SERVICE HELP CENTER (Accessible only from NAOJ network) if you have any questions.
09 November, 2018
Communication failure is occurring
Communication failure in the NAOJ network is occurring. Please contact NAOJ NETWORK SERVICE HELP CENTER (Accessible only from NAOJ network) if you have any questions.
17 October, 2018
System malfunction has been resolved
System malfunction in the interactive data analysis servers has been resolved. Thank you very much for your cooperation.
16 October, 2018
System malfunction is occurring
Presently, a piece of software such as emacs, gedit, evince, libreoffice, and so on does not work. We are investigting this issue, so please wait momentarily until the issue is resolved.
15 October, 2018
Scheduled maintenance in October was completed
Thank you for your cooperation.
01 October, 2018
Scheduled maintenance in October
Next maintenance is scheduled from 09:00 to 21:00 on 15 October, 2018 (JST). Please refer to this link for details.
01 October, 2018
Load balancers were repaired
The load balancers of the MDAS were repaired. SSH connection through "kaim.ana.nao.ac.jp" and "kaih.ana.nao.ac.jp" is now available.
25 September, 2018
Load balancers are out of order
The load balancers of the MDAS are out of order, so SSH connection through "kaim.ana.nao.ac.jp" and "kaih.ana.nao.ac.jp" is not available. Please access "kaim[01-20].ana.nao.ac.jp" or "kaih[01-12].ana.nao.ac.jp" directly.
14 September, 2018
The MDAS will be suspended
The MDAS will be suspended because of construction in the server room from 09:00 to 17:00 on 20 September, 2018 (JST).
Please refer to this link for details.
11 July, 2018
Scheduled maintenance in July
Next maintenance is scheduled from 09:00 to 21:00 on 17 July, 2018 (JST).
13 March, 2018
The system and applications will be suspended
The system and various applications will be suspended because of system replacement works
during the period of March 19(Mon) -- 24(Sat), 2018.
12 March, 2018
Open the JFY2018 Account Update page for the ADC analysis system We have started to update your MDAS account.
The account update form is here.
Users who do not need account update, such as students who are going to graduate,
should also send a 'Use report' from here.
12 March, 2018
We have started to operate the batch processing data analysis servers
Please refer to the user's guide for details of the batch processing data analysis servers.
28 February, 2018
We have resumed to accept account applications
The network issue of the MDAS is already restored.
27 February, 2018
We don't accept account applications now
We don't accept account applications now due to a network issue of the MDAS.
27 February, 2018
We have resumed to accept account applications
Even if you submitted an application during the period between 17:00 JST 25 Feb. and 0:00 JST 27 Feb.,
you don't have to re-submit the application.
26 February, 2018
We don't accept account applications now
We don't accept account applications now due to an E-mail system trouble in the NAOJ.
The E-mail system will be recovered after 0:00 JST on 27 February.
If you submitted an application after 17:00 JST on 25 February,
please re-submit the application after 0:00 JST on 27 February.
15 February, 2018
The replacement of the Multi-wavelength Data Analysis System was completed
The new MDAS is now available.Host names and mount points are changed in the new MDAS.
Please refer to an user's guide
before using the MDAS.