IA-64 Transition Plans Compared:

HP

PA RISC to IA-64

HP-UX (same release), NT

• Binary Compatibility: Yes

• Data Compatibility: Yes

• Board Upgrade Yes

U-SPARC

U-SPARC

SOLARIS-32

SOLARIS-64

IA-32

IA-64

SOLARIS-32

SOLARIS-64

Sun

(Big Endian)

(Little Endian)

SOLARIS OEMS

IBM

Digital/Compaq

ALPHA

Bravo

• Intel, Alpha: NT

• Intel: SCO UnixWare

• Intel: Sequent Dynix

• Alpha: Digital Unix

• MIPS: Tandem Unix

• VAX: OpenVMS ?

IA-64

Bravo

• Binary Compatibility Not from SPARC

• Data Compatibility Not from SPARC

• Board Upgrade Not from SPARC

With Sequent dropping Bravo for Monterey, what now?

Same box, same disks. Don’t even copy the data.

• Binary Compatibility: Not from Alpha

• Data Compatibility: Not from Alpha

• Board Upgrade: Not from Alpha

• Binary Compatibility Not from PowerPC

• Data Compatibility: Not from PowerPC

• Board Upgrade Not from PowerPC

• PowerPC: AIX

• PowerPC: OS/400 NO

• S/390: MVS NO

• S/390: VM, VSE NO

• Intel: OS/2 NO

• Intel: NT

ALPHA

NT

IA-64

NT

• “Monterey” IA-64

• PowerPC OS/400

• PowerPC OS/2

• S/390 MVS, etc.

• PowerPC AIX

• IA-64 NT

?

?

Sun H/W

?

?

IBM’s Monterey “Hail Mary pass” with SCO has many risks.

IA-32 story is OK--big problem is SPARC to Intel transition.

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