Here is our configuration OS: ubuntu 10.4( kernel 2.6.32) HBA: H200 driver: mpt2sas We'd like to map the disk name with enclosure slot. That is to say, we would like to sda -> slot 0, sdb -> slto 1, sdc-> slot 2 ...; With the ubuntu included mpt2sas driver, the disk name is out of order. We use the new mpt2sas , which version is 13.115. It solve the problem, disk name order aligned with enclosure slot. Then we use another server, but the OS is same(ubuntu 10.4), same HBA(h200), save driver(mpt2sas 13.115), the only different is this server(R515) has expander. Then the disk name is out of order against the enclosure slot. 1. With the ubuntu included mpt2sas, the disk name is always out of order. No matter with expander or without expander. 2. With the new mpt2sas (13.115), the disk name aligned with enclosure slots on the server without expander. 3. With the new mpt2sas(13.115), the disk name is still out of order on the server with expander. Here are my questions. 1. Regarding the linux disk name, is there any difference between expander and direct-connected? 2. How to use udev to solve the problem? By uuid or serial number, it is not practical for large number of servers. Could I use the expander physical attribute to map the disk name? 3. Could I use scsi enclosure service(SES) to solve the problem? how to do it? Thanks -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
