I am not sure recover slows down . But for sure degraded mode performance will be lower, especially read performance will be worse as data need to be recovered/computed. Same with recovery mode for read. But write performance should not affected. May be I am wrong. -----Original Message----- From: linux-raid-owner@xxxxxxxxxxxxxxx [mailto:linux-raid-owner@xxxxxxxxxxxxxxx] On Behalf Of hank peng Sent: Friday, January 08, 2010 8:24 PM To: linux-raid Subject: Can I skip recovery for RAID5 in this way? For my platform, recovery when creating a raid5 array or adding a new disk to a degraded raid5 array is not only time-consuming but also cpu cost. I am thinking now when every write into a raid5 stripe, if we only use reconstruct_write method, can I use this way to skip recovery? BTW, my appliation mainly focus on sequential write and I can also limit the number of disks in raid5. Please correct me if I am wrong, maybe my way is stupid. -- The simplest is not all best but the best is surely the simplest! -- 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 ��.n��������+%������w��{.n�����{����w��ܨ}���Ơz�j:+v�����w����ޙ��&�)ߡ�a����z�ޗ���ݢj��w�f
