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<!-- keep this as a security measure: #uncomment if the subject should only be modifiable by the listed groups * Set ALLOWTOPICCHANGE = Main.TWikiAdminGroup,Main.CMSAdminGroup * Set ALLOWTOPICRENAME = Main.TWikiAdminGroup,Main.CMSAdminGroup #uncomment this if you want the page only be viewable by the listed groups # * Set ALLOWTOPICVIEW = Main.TWikiAdminGroup,Main.CMSAdminGroup --> *CMS Tier-3 News Item* <!-- # Use the attached form to define title and summary of this news item. The details you can fill in directly on this wiki page. --> ---+ %FORMFIELD{"Title"}% ---++ Summary %FORMFIELD{"Summary"}% ---++ Details Because the several middlewares employed in the Grid are migrating towards a safer usage of the digital certificates based on the [[https://wiki.egi.eu/wiki/SHA-2_support_middleware_baseline][SHA-2]] digests, it was requested to upgrade the T3 dCache =/pnfs= storage middleware to a newer version that's also designed to manage this new kind of certificates; we're accordingly going to upgrade the T3 dCache =/pnfs= storage middleware from the current version 2.2 to version [[http://www.dcache.org/downloads/1.9/release-notes-2.6.shtml][2.6]] on *Friday, November 8th starting at 12:00 until the end of the day*. During that time interval the T3 =/pnfs= service will be either not available or unreliable so please avoid to access it. *18-10-2013 not yet confirmed, tests still ongoing :* We are also going to exploit this downtime to upgrade the Grid middlewares installed on the =t3ui*,t3wn*= servers; the T3 users will be able to login and to work on the =t3ui*= servers but please don't use the Grid commands like =srmcp= or =lcg-cp= because they're going to be upgraded; it's also advisable to logout and to login from the =t3ui*= servers after the end of the downtime to avoid any error due to some wrong path to the new commands. There won't be any email announcing the beginning of the downtime, but we will send the usual email announcing its successful completion. If you have a good reason to postpone all those upgrades kindly let us know *asap* and we will find an other day; the Grid asked us to upgrade by the end of *30th November*. If you're interested in the =SHA-2= topic there is a good [[http://www.eugridpma.org/documentation/hashrat/SHA1Risk.pdf][.pdf]] on the web, but it's pretty technical, the typical Grid user can safely skip these details. kind regards, Fabio Martinelli on behalf of the T3 Admins Team --- %FORMFIELD{"User"}% %FORMFIELD{"Date"}%
T3NewsForm
Title
Scheduled downtime to upgrade dCache from version 2.2 to 2.6
Summary
On Friday 8th Nov at 12:00 we're going to upgrade dCache from version 2.2 to 2.6
User
FabioMartinelli
Date
8. 11. 2013
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Topic revision: r5 - 2013-10-19
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DanielMeister
CmsTier3
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