ARM Server Day (2012/12/21) 向けに簡単に準備した資料、時間の都合で未発表です。

1. ARM Server DAY
2012/12/21
Cephと Microserver
（未発表資料）
小川 忠
@ogawa_tter
@ogawa tter
http://this-may-interest-you.blogspot.jp/

2. 2012年12月12日に
Ceph day at Amsterdam, November 2, 2012
の講演資料を見てたら・・・
の講演資料を見てたら
“Our Very First Ceph Day”
November 6th, 2012, Ceph Blog
http://ceph.com/community/our-very-first-ceph-day/
http://ceph com/community/our very first ceph day/
“Ceph is a unified distributed storage system designed
Ceph unified,
for excellent performance, reliability and scalability”
http://ceph.com/
http://ceph com/
2/5

3. Ceph構成ノード
Monitor OSD: Object Storage Device
*) Maintain cluster membership and state *) Serve stored objects to clients
*) Minimum Three monitors in one RADOS
) Minimum Three monitors in one RADOS RADOS Gateway:
RADOS G t
MDS: Meta Data Server *) REST‐based Interface to RADOS
*) Manages metadata for a POSIX‐compliant shared files system
*) Store Metadata in RADOS
*) Store Metadata in RADOS
RADOS: A reliable, autonomous, distributed object store comprised of self‐healing,
RADOS: “A reliable autonomous distributed object store comprised of self healing
self‐managing, intelligent storage nodes”
“ceph, a unified distributed storage system”, sage weil, Ceph day, November 2, 20123/5

4. 1PB Usable System
実際には、Monitorノードは必須。アクセス方法により、MDS、 RADOS Gatewayが適宜必要。
右二つの構成図は前掲資料より。＊）クライアント側要求性能と各ノードのバランスが重要。
構成図 前掲資料 り。 ）クライア 側要求性能 各 ラ 重要。
“DreamObjects, Cloud Storage, Powered by Ceph”, Ross Turk, inktank,
Ceph day, November 2, 2012 4/5

5. ゃな けれ
ARMじゃないけれどorz
Quanta STRATOS S900 X31A
S900-X31A
Number of node：24 or 48 in 3U
(1) Intel Atom processor S1200/node
(1) DDR3 1067/1333 MHz ECC SODIMM/node
(2) fi d
( ) fixed 2.5" SATA III drives/node
di / d
10GbE SFP+ Uplink ports on chassis (two or four)
“Microserver Market Heats up: Intel Atom S1200 (Centerton) Announcement”,
p ( )
2012/12/11, Perspectives, James Hamilton’s Blog
http://perspectives.mvdirona.com/2012/12/11/MicroserverMarketHeatsUpIntelAtomS1200CentertonAnnoun
cement.aspx 5/5