D1000 (12*9.1G) attached to E4500
D1000 with 12*9G disk drive use factory setting and connected to single E4500. 2 SCSI interfaces are looped ,1 SCSI interface is connected to a Terminator and another SCSI interface is connected to E4500.
There are no internal disk drive in E4500. probe-scsi-all shows all the disk as target 0, 1, 2, 3, 4, 5, 8, 9, a, b, c, d and 2 processors as target e, f. But when I install Solaris 10 on it, I got warning message "Bad magic number" about target 0, 1, 2, 3, 4, 5 and 8. Only disk 9, a, b, c and d were recognized by Solaris. After I finished installation, I can only use disk 9, a, b, c and d. Is there any fault about the Disk Array? Anybody can give me some hint for that?
BTW, should I use internal disk drive for OS and configure D1000 as an Raid-Array? Or if I don't have internal disk drive for OS, how to configure D1000 to Raid-5?
Thanks.
# 1
I wouldn't bother with a drive board... if it dies, then it all come tumbling down... I don't know what you mean by >2 SCSI interfaces are looped ,1 SCSI interface is connected to a Terminator and another SCSI interface is connected to E4500.< do you have the D1000 hooked up to a scsi card, or to the onboard controller? it does sound like you have a drive board (501-3113 or 501-5761) and that you might be attaching the D1000 to it... that board needs to be terminated...
use the D1000 for the OS. set it up any way you want... RAID is up to you...
haroldkarl
# 3
There is a configuration option that an Exx00 server may be connected to the D1000 array using two SCSI interfaces ( or dual I/O boards ). I have configured boot disks on Sun dual backplane JBOD arrays on Sun SPARC machines as follows: Say the array is attached to the host with dual HBAs and dual interface boards ( A5x00 split backplane for example ). The boot disk is c2t0d0 and the mirror is c3t0d0, this will give better availability because you will have the boot disk mirrored on the rear ( or oposite ) backplane. If a HBA or backplane fails, you'll still have access to the data. This could be applied to a D1000 also. The D1000 comes with either an 8 slot backplane or a 12 slot backplane, each can be split into 4/4 or 6/6 dual backplanes. Once the boot disk is mirrored you could configure the remaining disks with SVM or what ever volume manager you are running.
BTW the Bad Magic warning just means the disk does not have a label, you can label with format ( man format ).
