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I have purchased a new APC UPS which I want to connect with four Linux Debian clusters.
The APC UPS Model: SURTD3000XLIM (APC model) has one serial com connector and one USB connector on the back of the UPS. Two cables were provided alongwith the UPS purchase- a) RJ-45 to DB-9 communication cable (goes to the serial com conenctor of UPS) and also b) an USB-A to mini-USB cable connector. I used both the cables to connect to our two Linux clusters.
In case of a)- the imp part of /etc/apcupsd/apcupsd.conf file looks like :
UPSNAME LG27a
UPSCABLE ether
UPSTYPE net
DEVICE 128.40.177.201:3551
NETSERVER on
NISIP 127.0.0.1
NISPORT 3551After saving this file, I stopped apcupsd service and started again.
When I do systemctl status apcupsd, I receive:
Still when I do apcaccess, I get (Status:Comm Lost !):
APC : 001,018,0445
DATE : 2024-11-08 15:10:43 +0000
HOSTNAME : hartree
VERSION : 3.14.14 (31 May 2016) debian
UPSNAME : LG27a
CABLE : Ethernet Link
DRIVER : NETWORK UPS Driver
UPSMODE : Net Slave
STARTTIME: 2024-11-08 15:10:21 +0000
STATUS : COMMLOST
MBATTCHG : 5 Percent
MINTIMEL : 3 Minutes
MAXTIME : 0 Seconds
NUMXFERS : 0
TONBATT : 0 Seconds
CUMONBATT: 0 Seconds
XOFFBATT : N/A
STATFLAG : 0x05000100
END APC : 2024-11-08 16:51:44 +0000
In case of b)- the imp part of /etc/apcupsd/apcupsd.conf file looks like :
UPSNAME LG27a
UPSCABLE usb
UPSTYPE usb
DEVICE
NETSERVER on
NISIP 0.0.0.0
NISPORT 3551
After saving this file, I stopped apcupsd service and started again.
On systemctl status apcupsd, I receive :
In case b) as well, I am getting error (Status:comm lost) when I do apcaccess:
APC : 001,018,0439
DATE : 2024-11-08 16:46:41 +0000
HOSTNAME : meitner
VERSION : 3.14.14 (31 May 2016) debian
UPSNAME : LG27a
CABLE : USB Cable
DRIVER : USB UPS Driver
UPSMODE : Stand Alone
STARTTIME: 2024-11-08 14:28:27 +0000
STATUS : COMMLOST
MBATTCHG : 8 Percent
MINTIMEL : 4 Minutes
MAXTIME : 0 Seconds
NUMXFERS : 0
TONBATT : 0 Seconds
CUMONBATT: 0 Seconds
XOFFBATT : N/A
STATFLAG : 0x05000100
END APC : 2024-11-08 16:46:41 +0000
I checked all possible help resources such as : help1, help2 etc. But, still I could not succeed in setting up the communication.
For, b)type connectivity, when I type lsusb, it does not detect the APC unfortunately. Contrarily, in the /var/log/messages of the clustwer, USB device is detected:
I am unable to decipher the error. Kindly help me in rectifying the issue.
Thanks.
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