newpersn Posted October 31, 2023 Posted October 31, 2023 Hello, We have a HP 5412zl2 running as our Core switch. It has 2 PSU installed, During the half term i did some UPS testing and noticed that when we lose a UPS the core lose half its power. and same when the other UPS is tested. Looking at the config - It doesn't look like redundancy has been setup Does anyone know how to set this up? Thanks HP-Switch-5412Rzl2# show power Status and Counters - System Power Status System Power Status : No redundancy PoE Power Status : No redundancy Operational Power Status : No redundancy Chassis power-over-ethernet: Total Available Power : 4357 W Total Failover Pwr Avl : 2056 W Total Redundancy Power : 0 W Total Power Drawn : 0 W +/- 6W Total Power Reserved : 0 W Total Remaining Power : 4357 W Internal Power Total Power Aux Power PS (Watts) (Watts) Status ----- ------------- -------------- --------------------- 1 0 Not Supported Not Connected 2 0 Not Supported Not Connected 3 2279 1400 POE+ Connected 4 2078 1295 POE+ Connected Refer to command's help option for field definitions
Davit2005 Posted October 31, 2023 Posted October 31, 2023 As in the PoE loses it's power on half the switch or the modules lose power on half the switch where the PSU is?
newpersn Posted October 31, 2023 Author Posted October 31, 2023 (edited) As in the PoE loses it's power on half the switch or the modules lose power on half the switch where the PSU is? We have no POE modules installed. - Just 10 x 1/10GB SFP+ and 1 24 port Ethernet installed (Non POE) Modules lose power on half the switch. Thanks - - - Updated - - - Detailed information below. HP-Switch-5412Rzl2# show system power-supply detailed Power Supply Detailed Information PS Model Serial State Status -- ------ ---------- ---------------- ------------------------------------- 1 Not Present 2 Not Present 3 J9830A IN58G4G1P1 Powered AC Power Consumption : 257 Watts AC MAIN/AUX Voltage : 232/234 Volts Power Supplied : 182 Watts Power Capacity : 2750 Watts Inlet Temp (C/F) : 29.0C/84.2F Internal Temp (C/F) : 68.0C/154.3F Fan 1 Speed : 2550 RPM (47%) Fan 2 Speed : 2550 RPM (47%) 4 J9830A IN58G4G1RB Powered AC Power Consumption : 260 Watts AC MAIN/AUX Voltage : 232/233 Volts Power Supplied : 183 Watts Power Capacity : 2750 Watts Inlet Temp (C/F) : 28.3C/83.0F Internal Temp (C/F) : 71.1C/159.9F Fan 1 Speed : 2200 RPM (40%) Fan 2 Speed : 2250 RPM (41%) 2 / 4 supply bays delivering power. Currently supplying 365 W / 5500 W total power. Refer to command's help option for field definitions Edited October 31, 2023 by newpersn
Oaktech Posted October 31, 2023 Posted October 31, 2023 I think this is 'a feature' it certainly was on our one. We just made sure to patch anything critical or that was also held up by UPS to the half of the switch that stayed up.
newpersn Posted October 31, 2023 Author Posted October 31, 2023 (edited) I think this is 'a feature' it certainly was on our one. We just made sure to patch anything critical or that was also held up by UPS to the half of the switch that stayed up. Yeah - It looks like its not been enabled. This is where I'm failing to get it enabled. It looks like it load balanced rather than being set to redundancy. Edited October 31, 2023 by newpersn
Davit2005 Posted October 31, 2023 Posted October 31, 2023 (edited) I can't be sure but I think you need 3 PSUs to have redundancy on the 5412zl. Because the switch can run on a single supply, removing a redundant supply will not interrupt switch operation. However, on the 5412zl one power supply will only supply enough power to run the module slots A-F. Slots G-L will not receive any power unless there are at least two power supplies installed. For more information regarding power see the: ■ ProCurve Switch zl Internal Power Supply Installation Guide. ■ ProCurve Power over Ethernet (PoE) for zl and yl Products Planning and Implementation Guide Page 1-12 of following https://ftp.hp.com/pub/networking/software/5400zl-InstallGuide-June2006-59914713.pdf Edited October 31, 2023 by Davit2005
PotNoodleTech Posted November 6, 2023 Posted November 6, 2023 On my 5412zl I was running 2 x 48 POE ports and 1 x fibre and 1 x 10-GBE and 2 x PSU was not enough I had to order the full 4. The switch stayed up then! I wouldn't have expected you to need 4 if your not running any POE though. Mind you it wasn't really explained simply anywhere that I could find at the time. 2
psydii Posted November 6, 2023 Posted November 6, 2023 I can't speak to the 5412 but i seem to recall the older 8200zl had a split backplane, with two PSUs one on each you would loose half the switch if there was a power/psu failure. You needed 4 PSU if you wanted all ports to stay up. The design being that you connected every host/switch to it via two routes, one on one backplane one on the other - thus losing half the switch wouldn't matter. 1
newpersn Posted November 6, 2023 Author Posted November 6, 2023 I have a 3rd PSU being delivered tomorrow - I will see if i get time to install. (also waiting on PDU bits from CPC....) 2
PotNoodleTech Posted November 10, 2023 Posted November 10, 2023 Off topic but I really miss my 5412zl what an outstanding switch. *glances at aruba switches and wipes a tear from my eye* 3
Jawloms Posted November 10, 2023 Posted November 10, 2023 We needed 3 PSU for redundancy in ours. I think it depends on how many modules you have. 2
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