[smartmontools-support] Old Dell PERC4 / LSIMegaRAID Controller Not Supported? Lacks SMART?

[Dachshund Digital]

Old Dell PERC4 / LSIMegaRAID Controller Not Supported? Lacks SMART?

root at mausoleum:~# lspci -nn | grep RAID
05:04.0 RAID bus controller [0104]: LSI Logic / Symbios Logic MegaRAID 
[1000:1960] (rev 01)

# smartctl -P showall /dev/sda
No presets are defined for this drive.  Its identity strings:
MODEL:    /dev/sda
FIRMWARE: (any)
do not match any of the known regular expressions.

# smartctl -P showall -d scsi /dev/sda
No presets are defined for this drive.  Its identity strings:
MODEL:    -d
FIRMWARE: scsi
do not match any of the known regular expressions.

But I know the 6 drives, 5 in a RAID 5 set, and 1 global hotspace exist, 
in a simple Ultra SCSI 320 (Sun Microsystems) enclosure.

# megactl
a0       PERC 4/DC                chan:2 ldrv:1  batt:good
a0d0      1117GiB RAID 5   1x5  optimal
hot spares  :  a0c0t6
a0c0t1      279GiB  a0d0  online
a0c0t2      279GiB  a0d0  online
a0c0t3      279GiB  a0d0  online
a0c0t4      279GiB  a0d0  online
a0c0t5      279GiB  a0d0  online
a0c0t6      279GiB        hotspare

I know smartmontools is installed correctly, works on other drives 
connected to system just fine.

# smartctl --scan

/dev/sda -d scsi # /dev/sda, SCSI device
/dev/sdb -d scsi # /dev/sdb, SCSI device
/dev/sdc -d scsi # /dev/sdc, SCSI device

# smartctl -H /dev/sdb
smartctl 7.2 2020-12-30 r5155 [i686-linux-4.19.0-16-686-pae] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

So it appears either enclosure is the issue or the controller?

# smartctl -H -d scsi /dev/sda
smartctl 7.2 2020-12-30 r5155 [i686-linux-4.19.0-16-686-pae] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF READ SMART DATA SECTION ===
Request Sense failed, [Input/output error]

# smartctl -H -d megariad,0 /dev/sda
smartctl 7.2 2020-12-30 r5155 [i686-linux-4.19.0-16-686-pae] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org

/dev/sda: Unknown device type 'megariad,0'
=======> VALID ARGUMENTS ARE: ata, scsi[+TYPE], nvme[,NSID], 
sat[,auto][,N][+TYPE], usbcypress[,X], usbjmicron[,p][,x][,N], 
usbprolific, usbsunplus, sntjmicron[,NSID], sntrealtek, 
intelliprop,N[+TYPE], jmb39x[-q],N[,sLBA][,force][+TYPE], 
jms56x,N[,sLBA][,force][+TYPE], marvell, areca,N/E, 3ware,N, hpt,L/M/N, 
megaraid,N, aacraid,H,L,ID, cciss,N, auto, test <=======

Use smartctl -h to get a usage summary

Any other suggestions?