Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hello! In sample drbd.conf there is an option al-extents: # Configures the size of the active set. Each extent is 4M, # 257 Extents ~> 1GB active set size. In case your syncer # runs @ 10MB/sec, all resync after a primary's crash will last # 1GB / ( 10MB/sec ) ~ 102 seconds ~ One Minute and 42 Seconds. # BTW, the hash algorithm works best if the number of al-extents # is prime. (To test the worst case performace use a power of 2) al-extents 257; What is "active set"? What will be if I will set small size for it? I have 1,2 TB RAID array as low-level storage for DRBD. How to determine optimal value for al-extents parameter? Is it depends on disk size or number of files or activity on that disk? Thanks.