1746-E4T

IBM System Storage EXP3524 Expansion Unit — IBM System Storage EXP3524 Expansion Unit (enterprise hardware)

EOSL — PAST

90 mo

past end of service life

Lifecycle position

now

availableend of saleservice

AvailableJun 1986

End of saleNot published

End of serviceJan 2019IBM bulletin ↗

Options from here

Third-party maintenance

Keep it in production past the OEM cutoff with an independent maintainer.

Pre-stock spares

Buy spares now, while units still circulate on the secondary market.

Plan replacement

It is unsupported today — set a migration timeline and budget.

Run to failure

Low-criticality role — document the risk, harden backups, retire on your terms.

Other SKUs in System Storage EXP3524 Expansion Unit

1746-A4EIBM System Storage EXP3524 Expansion Unit (enterprise hardware)›1746-E4AIBM System Storage EXP3524 Expansion Unit (enterprise hardware)›

1746-E4T — questions

Is the IBM 1746-E4T still supported?

No. IBM's last date of support for 1746-E4T was Jan 2019 (per the IBM end-of-sale bulletin) — it is past end of service life.

What is the last date of support (EOSL) for the 1746-E4T?

Jan 2019 — per the IBM end-of-sale bulletin.

Can the 1746-E4T be maintained after IBM support ends?

After the last date of support, 1746-E4T units can often be kept in production through third-party maintenance providers. IBM no longer issues software fixes, support, or hardware replacement for it.