I like it! No need to explain! I am happy with stripe level. I just want to be able to verify that nothing was wrong. Guy -----Original Message----- From: linux-raid-owner@xxxxxxxxxxxxxxx [mailto:linux-raid-owner@xxxxxxxxxxxxxxx] On Behalf Of Peter T. Breuer Sent: Monday, August 30, 2004 11:26 AM To: linux raid Subject: Fast RAID5 I have a rudimentary patch for fast raid 5. It is currently available at ftp://oboe.it.uc3m.es/pub/Programs/fr5-1.0.tgz I'll comment the patch when my head cold clears and I get over jetlag in the next day or so (I am in the US). md: syncing RAID array md0 md: minimum _guaranteed_ reconstruction speed: 100 KB/sec/disc. md: using maximum available idle IO bandwith (but not more than 100000 KB/sec) for reconstruction. md: using 124k window, over a total of 4032 blocks. md0: retained bitmap a1c11e20 raid5: dirty stripe 4, sector 512, done 2, skipped clean sectors 0-511 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ raid5: clean stripe 5, sector 640, done 2, synced maybe dirty sectors 512-639 raid5: clean stripe 62, sector 8062, done 2, skipped clean sectors 640-8063 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ md: md0: sync done. RAID5 conf printout: --- rd:3 wd:2 fd:1 disk 0, s:0, o:1, n:0 rd:0 us:1 dev:[dev 07:00] disk 1, s:0, o:1, n:1 rd:1 us:1 dev:[dev 07:01] disk 2, s:0, o:0, n:2 rd:2 us:0 dev:[dev 00:00] RAID5 conf printout: --- rd:3 wd:3 fd:0 disk 0, s:0, o:1, n:0 rd:0 us:1 dev:[dev 07:00] disk 1, s:0, o:1, n:1 rd:1 us:1 dev:[dev 07:01] disk 2, s:0, o:1, n:2 rd:2 us:1 dev:[dev 07:02] md: updating md0 RAID superblock on device md: [dev 07:02] [events: 00000023]<6>(write) [dev 07:02]'s sb offset: 4032 md: [dev 07:00] [events: 00000023]<6>(write) [dev 07:00]'s sb offset: 4032 md: [dev 07:01] [events: 00000023]<6>(write) [dev 07:01]'s sb offset: 4032 md: recovery thread finished ... At the moment the precision is only in terms of stripes (128 sectors), but it could improve. Peter - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
