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| Subject: |
[Users] NERSC Archive HPSS downtime for upgrade 12/2/08 |
| Author: |
Eric Hjort <ELHjort_at_lbl.gov> |
| Date: |
2008-10-22 16:26:38 |
| Greetings NERSC HPSS user,
This announcement concerns an upcoming downtime for an upgrade of the
Archive or User HPSS system. This upgrade will result in the system
being unavailable beginning at 08:00 on Dec 2, 2008 through 08:00 on Dec
4, 2008. The other NERSC HPSS system, Regent or Backup, underwent this
upgrade in September and will not be affected.
Some important details:
HPSS authentication and accounts will now be integrated with the NERSC
Information Management (NIM) server. You will no longer access
auth.nersc.gov or utilize DCE usernames or passwords. Any password used
on Archive HPSS prior to the upgrade will no longer work. Instead, you
will need to generate a new password for use with Archive HPSS, and
place the new password in your .netrc file. After the upgrade, HSI,
pftp and FTP clients will all use the .netrc file for avoiding having to
type your password for access to HPSS.
1. Downloading new HPSS clients:
If you use HSI or HTAR from a non-NERSC computational system, you must
download a new client from https://www.nersc.gov/projects/ download/hpss/
Failure to download a new client will result in a failed authentication
request. You need a v3.4+ HSI and HTAR client to communicate with HPSS
after the upgrade.
The NERSC computational systems are updated by the Mass Storage Group
and will already have the new HSI, HTAR and pftp clients upon completion
of the upgrade.
2. New authentication method - generating a new HPSS password:
Every user must generate a new password to access Archive HPSS after the
upgrade. To do so:
(a.) Use a web browser to access http://nim.nersc.gov
(b.) Login using your NIM password (same as other NERSC production systems)
(c.) Select new option under Action called Generate HPSS Token
(d.) For access from any NERSC system, use the encrypted string provided
at the top of the frame. For access from a system outside of NERSC,
select the link to enter an IP address and enter the IP address of the
system you access HPSS from to generate a new encrypted string.
(e.) Use your NIM username and this new password to login to HPSS with
HSI, HTAR, pftp or FTP. You may place the string in a .netrc file in
your home directory for HSI, HTAR, pftp, and some FTP clients to use for
auto-authenticated access to HPSS. For details, see
http://www.nersc.gov/nusers/systems/hpss/accounts_passwords.php
3. Note the new location of home directories.
Previous to the upgrade, a user's home directory could be located
anywhere in the HPSS namespace. After the upgrade, home directories
will now be in /nersc/<first initial of moniker>/<moniker>. For
example, user 'franky' will be in /nersc/f/franky after logging into
Archive HPSS.
We have moved your home directory to this location and placed a symbolic
link from your old homedir to this location. If you have scripts that
hardcode or reference the old path, please update them accordingly.
Project directories will remain unchanged.
4. Change in startup parameters for HSI and HTAR:
When using HSI or HTAR, users could previously execute:
$ hsi (to access Archive)
or
$ hsi hpss (to access Regent)
With the new versions of HSI and HTAR, users must specify the HPSS
system they want to connect to with the -s option:
$ hsi -s archive
or
$ hsi -s hpss
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