{"id":26,"date":"2016-03-08T21:51:29","date_gmt":"2016-03-08T21:51:29","guid":{"rendered":"http:\/\/www.cs.columbia.edu\/crf?page_id=2603"},"modified":"2016-08-25T14:38:01","modified_gmt":"2016-08-25T14:38:01","slug":"backup","status":"publish","type":"page","link":"https:\/\/www.cs.columbia.edu\/crf\/guide\/resources\/backup\/","title":{"rendered":"Backups"},"content":{"rendered":"

Backup Policy<\/h2>\n
    \n
  1. We will have a backup quota for each user. This quota will include:
    \n– number of gigabytes
    \n– number of machines
    \nThe quota can be pooled together to use for a whole research group.<\/li>\n
  2. If the backup usage is over the quota, then a fee will be applied for each additional gigabyte.<\/li>\n
  3. A full backup will be done once a month.
    \n(note that we are looking into our budget to determine if we can afford to run full backups every two weeks)<\/li>\n
  4. An incremental backup will be done every night<\/li>\n
  5. Incremental backups will be kept for 2 full backup cycles. After that the tapes will be reused.<\/li>\n
  6. Full backups for faculty will be kept for as long as possible.<\/li>\n
  7. Full backups for others will be kept for 6 months, after which the tapes will be reused.<\/li>\n<\/ol>\n

    NetApp (Your home directory) Backup information<\/h2>\n
      \n
    1. NetApp has snapshots of your home directory, and you can access it by going into the .snapshot\/.snapshot directory from either Solaris or Linux. (From the root of your home directory, type: “cd .snapshot\/.snapshot”)<\/li>\n
    2. (For Faculty)<\/b> The snapshot directory has 15 subdirectories:\n
               hourly.1\/  hourly.4\/   nightly.1\/  nightly.4\/  weekly.2\/\n         hourly.2\/  hourly.5\/   nightly.2\/  weekly.0\/   weekly.3\/\n         hourly.0\/  hourly.3\/  nightly.0\/  nightly.3\/  weekly.1\/\n<\/pre>\n
      The snapshots of your home directory (backups) are kept 6 times a day (every two hours from 8am to 8pm), 5 times a week (nightly), and 4 times a month (weekly).<\/li>\n
    3. (For all other users)<\/b> The snapshot directory has 13 subdirectories:\n
               hourly.0\/  hourly.2\/  hourly.4\/  nightly.0\/  nightly.2\/  nightly.4\/  \n         hourly.1\/  hourly.3\/  hourly.5\/  nightly.1\/  nightly.3\/  weekly.0\/\n         weekly.1\/\n<\/pre>\n
      The snapshots of your home directory (backups) are kept 6 times a day (hourly from 8am to 8pm), 5 times a week (nightly), and 2 times a month (weekly).<\/li>\n
    4. To recover files, “cd ” into the appropriate snapshot directory, and you should see files from that snapshot. You can recover the file by just copying the file from that directory to your home directory.<\/li>\n<\/ol>\n
      Backup Request<\/h2>\n
      CRF is responsible for backing up filesystems within the department. If you would like to have your system backed up, send mail to crf@cs.columbia.edu<\/a> to get in touch with a backup operator. Also (very important!)<\/span>, you must mail crf@cs<\/a> if you add, change, or remove filesystems on your machine; otherwise, CRF cannot guarantee that your data will be backed up.<\/p>\n","protected":false},"excerpt":{"rendered":"
      Backup Policy We will have a backup quota for each user. This quota will include: – number of gigabytes – … Continue reading Backups<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":11,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-crf.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-26","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.cs.columbia.edu\/crf\/wp-json\/wp\/v2\/pages\/26","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cs.columbia.edu\/crf\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.cs.columbia.edu\/crf\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.cs.columbia.edu\/crf\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cs.columbia.edu\/crf\/wp-json\/wp\/v2\/comments?post=26"}],"version-history":[{"count":1,"href":"https:\/\/www.cs.columbia.edu\/crf\/wp-json\/wp\/v2\/pages\/26\/revisions"}],"predecessor-version":[{"id":86,"href":"https:\/\/www.cs.columbia.edu\/crf\/wp-json\/wp\/v2\/pages\/26\/revisions\/86"}],"up":[{"embeddable":true,"href":"https:\/\/www.cs.columbia.edu\/crf\/wp-json\/wp\/v2\/pages\/11"}],"wp:attachment":[{"href":"https:\/\/www.cs.columbia.edu\/crf\/wp-json\/wp\/v2\/media?parent=26"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}