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More shocking news, some POWER7 gear not supported.
Am I reading this correctly, my Power7 5877 drawers are not supported.
I didn't expect this.

Clients migrating from earlier generation servers may have been using I/O drawers such as the GX++ attached feature 5802 or 5877 PCIe 12X I/O Drawers with PCIe Gen 1 slots. Though most PCIe adapters in the feature 5802 or 5877 drawers can be moved to this server, and its disk drives converted and moved to the feature 5887 EXP24S drawer, the feature 5802 and 5877 drawers are not supported on this newer Power Systems POWER8 technology-based server. Similarly, the GX++ attached EXP30 Ultra SSD Drawer (#EDR1 or #5888) is not supported.

The older 3.5-inch-based feature 5886 EXP12S SAS Disk Drawer and feature 5786 EXP24 SCSI Disk Drawer are not supported.

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Steinmetz, Paul
Sent: Monday, April 28, 2014 9:48 PM
To: 'midrange-l@xxxxxxxxxxxx'
Subject: RE: Power8 PCI slots

This is not good.
Still can't use the embedded controller for production, even though they beefed up the cache.

"Unlike the hot plug PCIe slots and SAS bays, concurrent maintenance is not available for the integrated SAS controllers. Scheduled downtime is required if a service action is required for these integrated resources."

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Steinmetz, Paul
Sent: Monday, April 28, 2014 9:35 PM
To: 'midrange-l@xxxxxxxxxxxx'
Subject: RE: Power8 PCI slots

The IBM(r) Power(r) S824 (8286-42A) server is a powerful 2-socket server that ships with up to 24 activated cores and I/O configuration flexibility to meet today's growth and tomorrow's processing needs. The server features:

The following fully activated IBM POWER8(tm) dual-chip module (DCM) processor configurations in a 4U rack-mount form factor:
6-core or 12-core 3.89 GHz
8-core or 16-core 4.15 GHz
24-core 3.52 GHz
High-performance 1600 Mbps DDR3 ECC memory
16 GB (#EM8B), 32 GB (#EM8C), or 64 GB (#EM8D) memory features
Up to 1 TB memory with two Power Systems(tm) processor DCMs
Up to 512 GB memory with one Power Systems processor DCM
Choice of storage features:
Twelve SFF-3 Bays/DVD Bay
Eighteen SFF-3 Bays/ eight 1.8-inch SSD bays/DVD Bay/Dual IOA with Write Cache
Split feature to 6+6 SFF-3 Bays: Add a second SAS Controller
Hot-swap PCIe Gen 3 Slots
Integrated:
Service processor
EnergyScale(tm) technology
Hot-swap and redundant cooling
Four USB 3.0 ports for general use
Two USB 2.0 ports for non-general use
Two HMC 1GbE RJ45 ports
One system port with RJ45 connector
Four hot plug, redundant power supplies
19-inch rack-mount hardware (4U)

The Power S824 server (8286-42A) supports two processor sockets, offering 6-core or 12-core 3.89 GHz, 8-core or 16-core 4.15 GHz, or 24-core 3.52 GHz configurations in a 19-inch rack-mount, 4U (EIA units) drawer configuration. All the cores are active.

The Power S824 server supports a maximum of 16 DDR3 CDIMM slots. Memory supported are 16 GB, 32 GB, and 64 GB and run at speeds of 1600 Mbps, allowing for a maximum system memory of 1024 GB.

Rich I/O options in the system unit include:
Four PCIe G3 x16 full-height, full-length slots (one CAPI controller per socket at direct PCIe x16 slot from each socket)
Six PCIe G3 x8 full-height, half-length slots (1 of 4 PCIe G3 x8 LP slots will not be available if the high-function RAID controller installed.)
Eighteen 2.5-in. HDD SFF bays and eight 1.8-in. SSDs
RAID 0, 5, 6, 10, 5T2, 6T2, and 10T2 support
One DVD
One PCIe G3 x8 slot for 1GbE 4-port LAN controller integrated
Two front and two rear USB 3.0 ports; one rear system port
Service processor
2+2 Redundant hot-swap ac power supplies in each enclosure
19-inch rack-mount 4U configuration
PowerVM(r)
Red Hat Enterprise Linux (RHEL) 6.5, or later; SUSE Linux Enterprise Server (SLES) 11 Service Pack 3, or later; AIX 6.1, 7.1, or later; or IBM i 7.1, 7.2, or later, operating system support

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Sue Baker
Sent: Monday, April 28, 2014 9:00 PM
To: midrange-l@xxxxxxxxxxxx
Subject: Re: Power8 PCI slots

DrFranken <midrange@xxxxxxxxxxxx> wrote on Mon, 28 Apr 2014
21:04:50 GMT:

Not sure I would say Better but it comparable. Yes it can drive the
EXP24S in addition to the CEC DAD.


I will say better. It is more like the new feature EJ0L adapter than the feature 5913/ESA3 adapter.

- CEC is 7.2GB of compressed write cache
- EJOL is 12GB of compressed write cache
- 5913 is 1.8GB of uncompressed write cache

- CEC can support in excess of 30 SSDs but truly take advantage of 18 SSDs "with ease".
- EJ0L can support up to 48 SSDs but take advantage of 24 "with ease"
- 5913 can support up to 12 SSDs but take advantage of 12 "with ease"

When I say "with ease", it means for the OLTP DB2 based workloads used by the development lab to study the I/O characteristics of the adapters and SSDs.

--
Sue
IBM Americas Advanced Technical Sales Support (ATS) Power Systems Rochester, MN
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