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SubjectRe: 15 * 180gb in raid5 gives 299.49 GiB ?
On Thu, 6 Feb 2003, Peter Chubb wrote:

> OK, must have missed a change.
>
> In drivers/scsi/aic7xxx_osm.c find the function ahc_linux_biosparam()
> and cast disk->capacity to unsigned int like so:
>
> - cylinders = disk->capacity / (heads * sectors);
> + cylinders = (unsigned)disk->capacity / (heads * sectors);

Thnx Peter, this fixes the compile error
now i run 2.4.20 with the patch, and build the raid correctly

only a small thing left (in the raid code?) that needs to be fixed :
(array size is neggative)
mdadm version 1.0.1
but maybe it is just mdadm which is a buggy program
since the 'Total Devices : 16' is also incorrect (seen before on multiple
systems)

]# mdadm -D /dev/md0
/dev/md0:
Version : 00.90.00
Creation Time : Thu Feb 6 14:20:02 2003
Raid Level : raid5
Array Size : -1833441152 (2347.49 GiB 2520.65 GB)
Device Size : 175823296 (167.68 GiB 180.09 GB)
Raid Devices : 15
Total Devices : 16
Preferred Minor : 0
Persistence : Superblock is persistent

Update Time : Fri Feb 7 10:15:15 2003
State : dirty, no-errors
Active Devices : 15
Working Devices : 15
Failed Devices : 1
Spare Devices : 0

Layout : left-symmetric
Chunk Size : 64K

Number Major Minor RaidDevice State
0 8 17 0 active sync /dev/sdb1
1 8 33 1 active sync /dev/sdc1
2 8 49 2 active sync /dev/sdd1
3 8 65 3 active sync /dev/sde1
4 8 81 4 active sync /dev/sdf1
5 8 97 5 active sync /dev/sdg1
6 8 113 6 active sync /dev/sdh1
7 8 129 7 active sync /dev/sdi1
8 3 1 8 active sync /dev/hda1
9 22 1 9 active sync /dev/hdc1
10 33 1 10 active sync /dev/hde1
11 56 1 11 active sync /dev/hdi1
12 57 1 12 active sync /dev/hdk1
13 88 1 13 active sync /dev/hdm1
14 89 1 14 active sync /dev/hdo1
UUID : 967349d3:ae82ce10:f6d112a5:dccda06b

]# cat /proc/mdstat
Personalities : [raid0] [raid5]
read_ahead 1024 sectors
md0 : active raid5 hdo1[14] hdm1[13] hdk1[12] hdi1[11] hde1[10] hdc1[9]
hda1[8] sdi1[7] sdh1[6] sdg1[5] sdf1[4] sde1[3] sdd1[2] sdc1[1] sdb1[0]
2461526144 blocks level 5, 64k chunk, algorithm 2 [15/15]
[UUUUUUUUUUUUUUU]

unused devices: <none>
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