As you can see below, the usage of the 16 "LUNs" in lustre is not even (max free space per "LUN" is 337 GB, min is 16 GB!). Do you know if it is possible to level the usage while keeping the fs available? Or at least, without losing data? The problem is, as soon as one LUN becomes 100% full, we can not write to lustre at all. Thanks UUID bytes Used Available Use% Mounted on tiger_mds_UUID 113.5G 7.5G 106.1G 6 /mnt/lustre[MDT:0] ost1_UUID 1.0T 787.9G 271.7G 74 /mnt/lustre[OST:0] ost2_UUID 1.0T 779.1G 280.5G 73 /mnt/lustre[OST:1] ost3_UUID 1.0T 814.9G 244.7G 76 /mnt/lustre[OST:2] ost4_UUID 1.0T 758.6G 301.0G 71 /mnt/lustre[OST:3] ost5_UUID 1.0T 722.0G 337.6G 68 /mnt/lustre[OST:4] ost6_UUID 1.0T 938.8G 120.8G 88 /mnt/lustre[OST:5] ost7_UUID 1.0T 803.7G 255.9G 75 /mnt/lustre[OST:6] ost8_UUID 1.0T 828.5G 231.1G 78 /mnt/lustre[OST:7] ost9_UUID 1.0T 921.3G 138.3G 86 /mnt/lustre[OST:8] ost10_UUID 1.0T 941.2G 118.4G 88 /mnt/lustre[OST:9] ost11_UUID 1.0T 927.8G 131.8G 87 /mnt/lustre[OST:10] ost12_UUID 1.0T 1.0T 16.3G 98 /mnt/lustre[OST:11] ost13_UUID 1.0T 995.3G 64.3G 93 /mnt/lustre[OST:12] ost14_UUID 1.0T 779.1G 280.5G 73 /mnt/lustre[OST:13] ost15_UUID 1.0T 904.3G 155.3G 85 /mnt/lustre[OST:14] ost16_UUID 1.0T 905.6G 154.0G 85 /mnt/lustre[OST:15] filesystem summary: 16.6T 13.5T 3.0T 81 /mnt/lustre --------------------------------- Don''t pick lemons. See all the new 2007 cars at Yahoo! Autos. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mail.clusterfs.com/pipermail/lustre-discuss/attachments/20070115/bbdb68f7/attachment.html