News and Announcements

Dear colleagues,

We will be conducting a DR Drill for Computer Room 1 on 16th Sep 2017, Saturday, from 10am to 3pm.

For staff who own servers located in CR1, we will send more details to the nw-announce mailing list.
Please ensure that you are subscribed. See https://docs.comp.nus.edu.sg/node/1643 for details.

The services in COM1 and COM2 that will be affected:

1. Network access in CR1.

2. Hosted services in CR1.

3. UNIX login and file services (e.g. suna, sunfire).

4. Mail services (e.g. IMAP, mailauth).

5. Print services.

6. Tembusu and Angsana compute cluster.

7. Web services.

8. Virtual machines (Linux and Windows).

9. Windows login and shared folder services.

10. MySOC Service

If you have any queries, please contact our Technical Service,
techsvc@comp.nus.edu.sg <mailto:techsvc@comp.nus.edu.sg>

Thank you for your understanding.

Regards,

Computer Room Operations Team

Dear all,

There will be scheduled network maintenance as follows:

Date: 17 May 2017
Time: 7 pm to 9 pm

During this maintenance, wired and wireless network services at COM1-Level 1 will be intermittently disrupted. The purpose of this maintenance is to replace the UPS.

Thank you for your understanding.

Dear all,

There will be a scheduled network maintenance as follows:

Date: 18 April 2017
Time: 7 pm to 8 pm

During this maintenance, we are not expecting any network access disruption. The purpose of this maintenance is to upgrade network switches.

Thank you for your understanding.

Dear all,

There will be scheduled network maintenance as follows:

03 Nov 2016 from 7 pm to 10 pm: Affecting network at COM2 Basement, Level 1 and Level 2 (network points: C2-1-B-x, C2-1-1-x and C2-1-2-x)

During this time, wired and wireless network access to the affected areas will be disrupted. The purpose of this maintenance is to upgrade the network edge switches firmware serving the respective locations.

Thank you for your understanding.

Dear all,

There will be scheduled fibre cable maintenance as follows:

Date: 18 September 2016 [Sunday]
Time: 9:00 am to 7:00 pm

During this maintenance, network connections from Computer Room 2 [@S17] will be completely disrupted. The purpose of this maintenance is for fibre optic cable diversion required for S9 building structural changes.

Thank you for your understanding.

Dear colleagues,

We will be conducting a DR Drill for Computer Room 2 on 17th Sep 2016, Saturday, from 10am to 3pm.

The following services will be affected:

1. Network access in CR2.

2. Hosted services in CR2.

3. UNIX login and file services (e.g. suna, sunfire).

4. Mail services (e.g. IMAP, mailauth).

5. Print services.

6. Tembusu and Angsana compute cluster.

7. Web services.

8. Virtual machines (Linux and Windows).

9. Windows login and shared folder services.

10. MySOC Service

If you have any queries, please contact our Technical Service, techsvc@comp.nus.edu.sg <mailto:techsvc@comp.nus.edu.sg>

Thank you for your understanding.

Regards,

Computer Room Operations Team

Dear all,

As part of our Integrated Systems Testing (IST) following the infrastructure upgrading works in
Computer Room 1, we will shutdown outgoing power on both Source A and Source B, but never both at
the same time. The IST will take place from 10am to 6pm on 22nd and 23rd August 2016.

If your servers and other network equipment are connected to both Source A and Source B, you should
not be affected by the IST. Power will always be available on either Source A or Source B at any
one time. However, there will always be a risk of an accidental power supply trip or other unforeseen glitches.

Dear All,

SoC has commenced the long-planned upgrade of Computer Room 1 (CR1). As part of the works, the contractor has
scheduled the relocation and testing of new UPS and power source in the newly-outfitted Electrical Room 4 (ER4)
from 19th August 2016 6pm to 20th August 2016 9pm.

ER4 supplies the B source power to CR1.

While we do not expect any power supply disruption, there is always a remaining risk of an accidental power supply
trip and/or other unforeseen glitches.

What you can do to mitigate any power-related risks

1. Ensure your server connected to dual power sources, A & B.

2. If you are concerned about any potential adverse impact to your machine(s), please shut them down the day
before.

Dear all,

We are scheduling a series of network maintenance activities as follows:
 
1. 01 Aug 2016 from 7 pm to 10 pm: Affecting network at COM1 Level 1 (network points: C-1-1-x) and COM2 Basement, Level 1 and Level 2 (network points: C2-1-B-x, C2-1-1-x and C2-1-2-x)
2. 02 Aug 2016 from 7 pm to 10 pm: Affecting network at COM2 Level 1 and Level 2 (network points: C2-2-1-x and C2-2-2-x)
3. 03 Aug 2016 from 7 pm to 10 pm: Affecting network at COM2 Level 3 and Level 4 (network points: C2-4-3-x and C2-4-4-x)

During this time, wired and wireless network access to the respective affected areas will be disrupted. The purpose of this maintenance is to upgrade the network edge switches firmware serving the respective locations.
 
Thank you for your understanding.

Dear all,

There will be a scheduled network maintenance as follows:

Date: 10 May 2016
Time: 7pm to 8pm

During this maintenance, network access for wireless may intermittently disrupted. The purpose of this maintenance is to add APs license in our wireless services modules.

Thank you for your understanding.

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