storage review
DESCRIPTION
3D Workshop, Barcelona (ES), 20-21 April 2009. Storage review. Carmine Cioffi Database Administrator and Developer. Outline. Storage spec and configuration Performance Future plans. Storage spec and configuration. Two disk arrays used by both databases (OGMA, LUGH): - PowerPoint PPT PresentationTRANSCRIPT
Storage review
Carmine CioffiDatabase Administrator and Developer
3D Workshop, Barcelona (ES),
20-21 April 2009
Outline
• Storage spec and configuration
• Performance
• Future plans
2
Storage spec and configuration
• Two disk arrays used by both databases (OGMA, LUGH):– Storage: 2 SAN, 2GBps FC – Single switch SANBOX 5200 2Gb/s– Physical disks available:
• Array 1: 16 disks SATA 260GB• Array 2: 6 disks SATA 550GB
– Arrays configured with RAID10
3
Storage spec and configuration
4
OGMA LUGH
FC switchSANBOX 5200 2Gb/s
OGMA (407 GB)
LUGH (407GB
)
OGMA (537GB
)
Disk array 1 Disk array 2
Storage spec and configuration
• ASM:– ATLAS:
• External redundancy• Single disk group• Two disks:
– disk 1 of 407 GB (205 free)– disk 2 of 537 GB (271 free)
– LHCb:• External redundancy• Single disk group• One disk 407 GB (337 free)
5
Performance MB/sec
6
MB/ sec
0
10
20
30
40
50
60
0 1 2 3 4 5 6 7 8 16 24 32 40 48 56 64 72 80 88 96 104 112 120 128 136 144 152 160
Small IO
Large IO 0
Large IO 1
Large IO 2
Large IO 3
Large IO 4
Performance IO/sec
7
IO/sec
0
100
200
300
400
500
600
700
800
900
1 2 3 4 5 6 7 8 16 24 32 40 48 56 64 72 80 88 96 104 112 120 128 136 144 152 160
Small IO
Large IO 0
Large IO 1
Large IO 2
Large IO 3
Large IO 4
Large IO 5
Performance Latency
8
latency
0
50
100
150
200
250
1 2 3 4 5 6 7 8 16 24 32 40 48 56 64 72 80 88 96 104 112 120 128 136 144 152 160
Small IO
Large IO 0 Large IO 1 Large IO 2 Large IO 3 Large IO 4 Large IO 5
Future Plans
9
OGMA LUGH
FC switch 1SANBOX 5200 2Gb/s
Disk array 1
LUGH
OGMA
FC switch 2SANBOX 5602 4Gb/s
Disk array 2mirror
LUGH
OGMAASM mirroring
Future Plans
• Two disk arrays used by all or systems except TAG:– Storage:
– 2 SAN, 2GBps FC– ? (third disk array)
– two switches:• SANBOX 5200 2Gb/s• SANBOX 5602 4Gb/s
– Physical disk available: • Array 1: 16 disks SATA 260GB (backup)• Array 2: 6 disks SATA 550GB ? (storage)• Array 3:? (storage)
– Arrays configured with RAID5 or RAID6
10
Future Plans
• ASM:– ATLAS:
• Normal redundancy• Single disk group two fail groups• Two or more disks• Mirror disks on different disk array
– LHCb:• Normal redundancy• Single disk group two fail groups• Two or more disks• Mirror disks on different disk array
11
Migration date estimation
• ATLAS by mid June• LHCb by the end August