cat /proc/diskstats shows good counters for all disk drives, but zeros for all MD arrays. [FONT=monospace]In Leap 15.2, the counters were complete and accurate. Starting with 15.3, zeros. Any ideas on how to get it to collect counters for the md arrays?[/FONT]
root@linux2:/etc/sysstat > uname -a
Linux linux2 5.3.18-150300.59.54-default #1 SMP Sat Mar 5 10:00:50 UTC 2022 (1d0fa95) x86_64 x86_64 x86_64 GNU/Linux
root@linux2:/etc/sysstat > cat /etc/os-release
NAME=“openSUSE Leap”
VERSION=“15.3”
root@linux2:/etc/sysstat > cat /proc/mdstat
Personalities : [raid1] [raid10]
md5 : active raid10 sdh1[6] sdj1[0] sdi1[1] sdg1[2] sdf1[4] sde1[3]
11721052032 blocks super 1.0 64K chunks 2 near-copies [6/6] [UUUUUU]
bitmap: 13/88 pages [52KB], 65536KB chunk
md3 : active raid10 sda1[4] sdc1[0] sdd1[2] sdb1[5]
31251491840 blocks super 1.2 512K chunks 2 near-copies [4/4] [UUUU]
bitmap: 0/233 pages [0KB], 65536KB chunk
md1 : active raid1 nvme1n1p3[1] nvme0n1p3[0]
420752192 blocks super 1.0 [2/2] [UU]
bitmap: 3/4 pages [12KB], 65536KB chunk
unused devices: <none>
[FONT=monospace]root@linux2:/etc/sysstat > cat /proc/diskstats
259 0 nvme1n1 20163 1628 1375302 12997 480171 51965 7323693 176243 0 168496 252459 0 0 0 0 31361 63218
259 1 nvme1n1p1 164 0 9600 256 2 0 2 7 0 72 264 0 0 0 0 0 0
259 2 nvme1n1p2 59 0 4432 6 0 0 0 0 0 32 6 0 0 0 0 0 0
259 3 nvme1n1p3 19895 1628 1359094 12730 475221 51965 7323691 166309 0 163560 179040 0 0 0 0 0 0
259 4 nvme0n1 93479 482 3631404 21330 480410 51726 7323693 160047 0 194852 255389 0 0 0 0 31361 74012
259 5 nvme0n1p1 167 0 9600 66 2 0 2 0 0 96 66 0 0 0 0 0 0
259 6 nvme0n1p2 59 0 4432 59 0 0 0 0 0 76 59 0 0 0 0 0 0
259 7 nvme0n1p3 93208 482 3615196 21173 475460 51726 7323691 147902 0 191204 169075 0 0 0 0 0 0
** 9 1 md1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 **
8 0 sda 5103 17450 653123 40924 13970 236918 3206562 147382 0 96720 234939 0 0 0 0 4832 46632
8 1 sda1 4960 17450 650818 39673 13669 236918 3206562 143392 0 91912 183065 0 0 0 0 0 0
8 32 sdc 159372 108688 2627002 326703 61411 317924 4259058 1813918 0 428880 2183831 0 0 0 0 4835 43208
8 33 sdc1 159149 108688 2624637 326465 61110 317924 4259058 1807093 0 425736 2133559 0 0 0 0 0 0
8 48 sdd 103239 6590 1363444 110080 14013 236875 3206562 123775 0 211768 258574 0 0 0 0 4830 24717
8 49 sdd1 103092 6590 1361136 109910 13712 236875 3206562 121125 0 209308 231035 0 0 0 0 0 0
8 16 sdb 19825 120826 1604786 154132 60400 318935 4259058 1029122 0 247772 1250246 0 0 0 0 4836 66991
8 17 sdb1 19670 120826 1602472 152780 60099 318935 4259058 1019244 0 241868 1172025 0 0 0 0 0 0
8 80 sdf 173229 1823 8280822 58306 134204 53348 4569018 109219 0 372756 229686 0 0 0 0 60247 62160
8 81 sdf1 173006 1823 8278457 56108 127842 53348 4569018 105614 0 367128 161723 0 0 0 0 0 0
8 64 sde 57189 1817 3811271 27227 128928 49580 4510250 109708 0 218632 201065 0 0 0 0 60250 64130
8 65 sde1 56966 1817 3808906 25011 122566 49580 4510250 106030 0 213116 131041 0 0 0 0 0 0
8 144 sdj 174615 1374 8364001 40243 131641 49595 4601506 75747 0 361088 154751 0 0 0 0 60226 38760
8 145 sdj1 174392 1374 8361636 40090 125279 49595 4601506 72531 0 357400 112622 0 0 0 0 0 0
8 112 sdh 53875 1578 3647023 26435 134081 53471 4569018 111764 0 216880 202062 0 0 0 0 60254 63862
8 113 sdh1 53652 1578 3644658 24233 127719 53471 4569018 108137 0 211112 132371 0 0 0 0 0 0
8 96 sdg 168853 1709 8129661 62017 129020 49488 4510250 107396 0 373560 232209 0 0 0 0 60261 62796
8 97 sdg1 168630 1709 8127296 61862 122658 49488 4510250 100539 0 369332 162401 0 0 0 0 0 0
8 128 sdi 53214 1270 3591188 16285 131594 49642 4601506 75042 0 208364 130388 0 0 0 0 60226 39060
8 129 sdi1 52991 1270 3588823 16126 125232 49642 4601506 71860 0 204624 87986 0 0 0 0 0 0
** 9 3 md3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
9 5 md5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
**
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[FONT=monospace]root@linux2:/etc/sysstat > cat /sys/block/md1/stat
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Same for md3 and md5 - all zeros for counters.
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