Build our own affordable cloud storage

openSUSE Asia Summit Dec, 2015

CLOUD STORAGE INTROSoftware Define Storage

Storage Trend

> Data Size and Capacity– Multimedia Contents– Big Demo binary, Detail Graphic /

Photos, Audio and Video etc. > Data Functional need

– Different Business requirement– More Data driven process – More application with data– More ecommerce

> Data Backup for a longer period – Legislation and Compliance – Business analysis

Storage Usage

Tier 0Ultra High

Performance

Tier 1High-value, OLTP, Revenue Generating

Tier 2

Backup/Recovery,Reference Data, Bulk Data

Tier 3

Object, Archive,Compliance Archive,Long-term Retention

1-3%

15-20%

20-25%

50-60%

Software Define Storage

> High Extensibility:– Distributed over multiple nodes in cluster

> High Availability: – No single point of failure

> High Flexibility: – API, Block Device and Cloud Supported Architecture

> Pure Software Define Architecture> Self Monitoring and Self Repairing

Sample Cluster

Why using Cloud Storage?> Very High ROI compare to traditional Hard Storage

Solution Vendor > Cloud Ready and S3 Supported> Thin Provisioning> Remote Replication> Cache Tiering> Erasure Coding> Self Manage and Self Repair with continuous

monitoring

Other Key Features

> Support client from multiple OS> Data encryption over physical disk ( more CPU

needed)> On the fly data compression> Basically Unlimited Extendibility > Copy-On-Writing ( Clone and Snapshot ) > iSCSI support ( VM and thin client etc )

WHO USING IT ?Show Cases of Cloud Storage

EMC, Hitachi,HP, IBM

NetApp, Dell,Pura Storage,Nexsan

Promise, Synology,QNAP, Infortrend,ProWare, SansDigitial

Who is doing Software Define Storage

Who is using software define storage?

HOW MUCH?What if we use Software Define Storage?

HTPC AMD (A8-5545M)

Form factor: – 29.9 mm x 107.6 mm x 114.4mm

CPU:– AMD A8-5545M ( Clock up 2.7GHz / 4M 4Core)

RAM:– 8G DDR-3-1600 KingStone ( Up to 16G SO-DIMM )

Storage:– mS200 120G/m-SATA/read:550M, write: 520M

Lan:– Gigabit LAN (RealTek RTL8111G)

Connectivity:– USB3.0 * 4

Price:– $6980 (NTD)

Enclosure

Form factor: – 215(D) x 126(w) x 166(H) mm

Storage:– Support all brand of 3.5" SATA I / II / III hard disk drive 4 x 8TB = 32TB

Connectivity:– USB 3.0 or eSATA Interface

Price:– $3000 (NTD)

AMD (A8-5545M)

> Node = 6980> 512SSD + 4TB + 6TB +

Enclosure =5000 + 4000 + 7000 = 16000

> 30TB total = 16000 * 3 = 58000

> It is about the half of Amazon Cloud 30TB cost over 1 year

QUICK 3 NODE SETUPDemo basic setup of a small cluster

CEPH Cluster Requirement

> At least 3 MON> At least 3 OSD

– At least 15GB per osd

– Journal better on SSD

ceph-deploy> ssh no password id need

to pass over to all cluster nodes

> echo nodes ceph user has sudo for root permission

> ceph-deploy new <node1> <node2> <node3> – Create all the new MON

> ceph.conf file will be created at the current directory for you to build your cluster configuration

> Each cluster node should have identical ceph.conf file

OSD Prepare and Activate

> ceph-deploy osd prepare <node1>:</dev/sda5>:</var/lib/ceph/osd/journal/osd-0>

> ceph-deploy osd activate <node1>:</dev/sda5>

Cluster Status> ceph status > ceph osd stat > ceph osd dump> ceph osd tree > ceph mon stat > ceph mon dump > ceph quorum_status> ceph osd lspools

Pool Management

> ceph osd lspools> ceph osd pool create <pool-name> <pg-num>

<pgp-num> <pool-type> <crush-ruleset-name>> ceph osd pool delete <pool-name> <pool-

name> --yes-i-really-really-mean-it > ceph osd pool set <pool-name> <key> <value>

CRUSH Map Management> ceph osd getcrushmap -o crushmap.out > crushtool -d crushmap.out -o decom_crushmap.txt > cp decom_crushmap.txt update_decom_crushmap.txt> crushtool -c update_decom_crushmap.txt -o update_crushmap.out > ceph osd setcrushmap -i update_crushmap.out

> crushtool --test -i update_crushmap.out --show-choose-tries --rule 2 --num-rep=2

> crushtool --test -i update_crushmap.out --show-utilization --num-rep=2ceph osd crush show-tunables

RBD Management

> rbd --pool ssd create --size 10000 ssd_block– Create a 1G rbd in ssd pool

> rbd map ssd/ssd_block ( in client ) – It should show up in /dev/rbd/<pool-name>/<block-

name>> Then you can use it like a block device

SALT STACK + SESInstall config and benchmark

Files prepare for this demoKiwi Image SLE12 + SES2> https://files.secureser

ver.net/0fCLysbi0hb8cr

Git Salt Stack Repo> https://github.com/Av

engerMoJo/Ceph-Saltstack

USB install and then Prepare Salt-Minion> #accept all node* key from minion > salt-key -a > #copy all the module and _systemd /srv/salt/ ;> sudo salt 'node*' saltutil.sync_all> #benchmark ( get all the disk io basic number ) > sudo salt "node*" ceph_sles.bench_disk /dev/sda /dev/sdb /dev/sdc

/dev/sdd> #get all the disk information> sudo salt "node*" ceph_sles.disk_info> #get all the networking information> sudo salt -L "salt-master node1 node2 node3 node4 node5"

ceph_sles.bench_network salt-master node1 node2 node3 node4 node5

Prepare and Create Clusters Mons> #create salt-master ssh key > sudo salt "salt-master" ceph_sles.keygen> #send key over to nodes> sudo salt "salt-master" ceph_sles.send_key node1 node2 node3 > #create new cluster with the new mon> sudo salt "salt-master" ceph_sles.new_mon node1 node2 node3> #sending cluster conf and key over to the nodes> sudo salt "salt-master" ceph_sles.push_conf salt-master node1 node2

node3

Create Journal and OSD > #create the osd journal partition> #we can combin the get_disk_info for ssd auto assign > sudo salt -L "node1 node2 node3" ceph_sles.prep_osd_journal /dev/sda

40G> # clean all the osd disk partition first > sudo salt 'salt-master' ceph_sles.clean_disk_partition

"node1,node2,node3" "/dev/sdb,/dev/sdc,/dev/sdd"> # prep the list of osd for the cluster > sudo salt "salt-master" ceph_sles.prep_osd "node1,node2,node3"

"/dev/sdb,/dev/sdc,/dev/sdd"

Update Crushmap and do rados benchmark

> # crushmap update for the benchmark> sudo salt "salt-master"

ceph_sles.crushmap_update_disktype_ssd_hdd node1 node2 node3

> # rados bench> sudo salt "salt-master" ceph_sles.bench_rados

Cache Tier setup> sudo salt "salt-master" ceph_sles.create_pool samba_ssd_pool 100 2

ssd_replicated> sudo salt "salt-master" ceph_sles.create_pool samba_hdd_pool 100 3

hdd_replicated> ceph osd tier add samba_hdd_pool samba_ssd_pool> ceph osd tier cache-mode samba_ssd_pool writeback> ceph osd tier set-overlay samba_hdd_pool samba_ssd_pool

> ceph osd pool set samba_ssd_pool hit_set_type bloom> ceph osd pool set samba_ssd_pool hit_set_count 2> ceph osd pool set samba_ssd_pool hit_set_period 300

Block device demo

> rbd --pool samba_hdd_pool create --size 10000 samba_test> sudo rbd --pool samba_ssd_pool ls> sudo rbd --pool samba_ssd_pool map samba_test> sudo mkfs.xfs /dev/rbd0> sudo mount /dev/rbd0 /mnt/samba> sudo systemctl restart smb.service

WHAT NEXT?

Email me alau@suse.comLet me know what you want to hear next