HowToFixMe
Upgrade Failure

HPE Aruba 8100: How to verify image integrity before activating

By Sai Kiran Pandrala · reviewed by Sai Kiran Pandrala, Editor Last verified: 2026-05-30

⚡ At a glance
VendorHPE Aruba
Operating systemArubaOS-CX
CategoryUpgrade Failure
Skill levelIntermediate to advanced
DIY-able?Yes with CLI access; some scenarios need Aruba TAC + RMA.

Image upgrades on HPE Aruba platforms have one cardinal rule: verify the running image first. `show version` on ArubaOS-CX is the single most useful command in a change window because it tells you exactly what you are rolling back to if something breaks.

Across the 8100 family the upgrade syntax is `copy tftp://10.10.1.100/ArubaOS-CX_10_13_0010.swi primary`. pay attention to the activation step because ArubaOS-CX treats download and activate as separate transactions. Forgetting the activation step is the single most common reason an 'upgrade' silently does nothing.

Aruba TAC expects you to capture pre-upgrade state and have a console session open during the change window. Anything less is a support-case waste of time if it goes sideways.

What this guide covers

Verify image integrity before activating on a HPE Aruba 8100 (ArubaOS-CX).

Step-by-step

  1. Copy the image to local flash.
  2. Run the vendor checksum / md5 command.
  3. Compare against the checksum published on the vendor portal.
  4. If mismatched, the image is corrupt, re-download.

CLI / commands

# Boot recovery prompt: ServiceOS#

# Verify image
show version

# Upgrade
copy tftp://10.10.1.100/ArubaOS-CX_10_13_0010.swi primary

# Save / commit
write memory

# Rollback
checkpoint rollback checkpoint-1

Recovery options

Frequently asked questions

Will this work on my specific ArubaOS-CX version?

The procedure reflects current ArubaOS-CX behaviour. Older releases may need minor syntax adjustments: use the CLI help (? or tab-completion) to verify.

Should I open a Aruba TAC case immediately?

Open one if you suspect hardware failure or the symptom persists after a maintenance-window reload. Make sure your support entitlement is active first.

Where can I find the HPE Aruba official documentation?

https://community.arubanetworks.com/, search the product family + feature name.

Is this procedure safe in production?

Test in a lab or maintenance window first. Capture pre-change state so you can roll back.

Related guides worth a look while you sort this one out:

References

Reference material, not professional advice. Validate against your specific ArubaOS-CX version and test in a non-production environment before applying.

Common patterns we see

When this symptom shows up on a HPE device, three patterns repeat:

1. Recent firmware update changed behavior. the symptom started within a week of an OTA push. Rollback or wait for the hotfix. 2. Environmental trigger, temperature, humidity, line voltage, network changes. Look at what changed in the environment. 3. Cumulative wear: components like batteries, gaskets, fans degrade over time. Replace the consumable rather than chasing a software fix.

Knowing which pattern applies saves time on the wrong fix.

Safety + preconditions

Before any work on a HPE device:

How to confirm it's actually fixed

On a HPE device, the test is rarely "reboot and see". Use this list:

When to call HPE support instead

Escalate if:

More frequently asked questions

Should I update firmware first or last?

Update firmware first if a release note specifically mentions your symptom. Otherwise, finish the troubleshooting flow first, then update; that way you can isolate whether the update or the underlying fix solved it.

What if the fix returns after a reboot?

Persistent fault returns mean either: a hardware fault (escalate), a configuration that's being overwritten by a sync source (check cloud profiles), or a regression in a recent firmware update (rollback).

Can I roll this back if something breaks?

Yes for software-level changes (firmware rollback, config rollback). Hardware changes are usually one-way. Always back up settings before starting.

Why is this happening on a brand-new unit?

Out-of-box defects do occur. If you've owned the device under 30 days and the symptom persists after a factory reset, escalate to the seller for replacement under DOA terms before opening a manufacturer support case.

What if my model isn't exactly the same revision?

Cross-check the model code on the rating plate against the manufacturer support page. Major firmware generations sometimes shift the menu path; the option is usually under a similarly-named section.

Topology deep dive: where this box sits

In most of the data-centre rows I run, the Aruba CX 8100 sits as a leaf or a small-core aggregation switch feeding a pair of spines over 25G or 100G uplinks. That placement matters. When something on this box misbehaves, the blast radius is every rack hanging off it, not one server. I keep a printed rack-elevation taped to the cold-aisle door so anyone on the night shift knows which member ID maps to which physical unit. ArubaOS-CX exposes the database-driven state through OVSDB, so a diagnosis that looks clean on the CLI can still hide a config-daemon stall. Check both.

The 8100 family typically runs VSX for the active-active pair. If you have a VSX peer, half the panic from a single-box fault disappears: the keepalive and ISL carry the load while you work. I have lost a primary at a Mumbai BFSI colo and not dropped a single trade because VSX held. But VSX also adds failure modes of its own, like a split-brain when the ISL and keepalive both drop. Map your topology before you touch anything.

Configuration walkthrough

My controlled-upgrade ritual has not changed in years because it works. Pull the target image and its published checksum, copy it to the standby boot bank, verify the hash on the box itself, then schedule the activation inside a maintenance window. On the Aruba CX 8100 I never overwrite the running bank. Leaving the previous image intact is your rollback, and rollback that takes one reboot instead of a TFTP recovery is the difference between a 5-minute blip and a 2 a.m. escalation.

# Stage the image to the non-active bank, then verify before activate
copy tftp://10.20.0.5/aruba-cx.swi primary vrf mgmt
show image
boot set-default primary
# verify checksum the box computed matches the vendor-published value
show image detail
# only then:
boot system primary

For the rollback case I keep both banks populated and document which bank held the last known-good build in the change ticket. If the new build panics on boot, the boot loader lets me select the other bank. The recovery-from-corruption path is the only one that touches the loader manually: break into the loader, point it at a TFTP server on the management VRF, and reload a clean image onto the dead bank. Slow, but it has saved boxes that otherwise would have gone back as an RMA.

Troubleshooting commands for this platform

These are the commands I actually run, in the order I run them, when I am standing in front of a Aruba CX 8100 that is misbehaving. Collect first, interpret second.

# Confirm both image banks and which one is active
show image
show image detail
# Reason for the last reload -- catches a failed activate
diag utilities reset-reason
show core-dump
# After activate, confirm the version actually took
show version

India compliance and deployment notes

Procurement and compliance shape how I handle these boxes in India more than people expect. A Aruba CX 8100 bought through a GeM tender or a reseller like Redington or Ingram Micro ships with a HPE Care Pack or a Foundation Care SLA, and the renewal line item is where budgets quietly die. A typical support renewal runs anywhere from Rs 85,000 to Rs 2 lakh (roughly $1,000 to $2,400 USD) per chassis-year depending on the response tier, and the 4-hour onsite tier costs noticeably more than next-business-day. For a BFSI client I always price the 4-hour tier into the BoQ because a trading-floor switch with NBD support is a governance finding waiting to happen.

On the compliance side, MeitY and RBI data-localisation expectations push a lot of this gear into India-resident data centres, and the DPDP Act now adds real weight to keeping auth and access logs inside the country. When I export a support bundle to send to HPE, I scrub or confirm there is no resident personal data leaving the boundary, because a diagnostic dump can carry usernames, MAC bindings, and IP allocations. For regulated clients I do the upload through an India-region case portal and note it in the change ticket. The auditors ask. Have the answer ready.

A real-world deployment I did

Last quarter I got pulled into a Bengaluru cloud-zone incident on a Aruba CX 8100 that the night team had already half-fixed and made worse. The symptom they reported and the symptom I found were not the same thing, which is normal. I started where I always start: capture state, read the reset reason, diff the running config against the snapshot in our config repo. The diff told the story in about ninety seconds. Someone had pushed an emergency change at 1 a.m. without a ticket, and the rollback they thought they did never committed. I reverted to the repo copy, confirmed the neighbours and interfaces came back clean, and left the box stable. Total hands-on time was under twenty minutes once I stopped guessing and started reading. The lesson I keep relearning: the box almost always tells you what happened if you collect the evidence before you start changing things.

Extended FAQs

How long should a clean recovery actually take on this platform?

For a software-path fix on the Aruba CX 8100, plan 20 to 60 minutes hands-on plus a maintenance window for any reboot. A hardware RMA path is dominated by logistics, not labour: the swap is ten minutes, the courier and the Care Pack dispatch are the long pole.

Do I need to involve HPE TAC, or can I close this myself?

If the box recovers after a captured, documented change and stays stable through a 24-hour soak, close it yourself and file the evidence. Open a case the moment you suspect a hardware fault, a crashinfo with no software workaround, or a repeat failure after a clean fix. Confirm your entitlement is active before you call.

What is the one artefact I should always grab first?

The support or tech-support bundle. It freezes the state TAC will ask for and protects you if a later change muddies the evidence. Grab it even when the box looks healthy.

Will any of this differ on a different ArubaOS-CX or appliance build?

Command syntax drifts across major releases. Lean on tab-completion and the in-line ? help to confirm the exact form on your build before you paste a command into production.