Netgear RD521210 – ReadyDATA 5200 12TB SATA Bundle includes RD5200 with 2 x RD5D6LT01 Disk Packs Quick Setup Guide
Optimize Performance on a ReadyDATA System
18
Volume Performance and Configuration on ReadyDATA Platforms
RAID Performance on SAN Volumes
This section describes and illustrates in detail the RAID performance of a volume with SATA
disks and the RAID performance of a volume with SAS disks.
disks and the RAID performance of a volume with SAS disks.
The data and graphs in this section are based on two volumes, one with 12 SATA disks and
one with 12 SAS disks, and a transfer of 200 GB data over iSCSI.
one with 12 SAS disks, and a transfer of 200 GB data over iSCSI.
Table 4. RAID performance on SAN volumes
RAID Type
Operation
Performance
Conclusion
SATA Disks
SAS Disks
RAID 10
D&D writes
386 Mbps
764 Mbps
RAID
10 is the best choice for
storage applications that require
high IOPS and low latency.
high IOPS and low latency.
D&D reads
202 Mbps
184 Mbps
4k random writes
1,896 IOPS
3,030 IOPS
4k random reads
3,592 IOPS
6,214 IOPS
4k sequential writes 65,816 IOPS
132,297 IOPS
4k sequential reads
162,160 IOPS 173,561 IOPS
Hybrid
This volume is a
RAID
RAID
5+0 x3 volume
that consists of three
disks that have been
expanded two times
for a total of three
RAID groups. The
volume also includes
SSD boost disks.
disks that have been
expanded two times
for a total of three
RAID groups. The
volume also includes
SSD boost disks.
D&D writes
618 Mbps
Not measured
A hybrid volume offers
performance that approaches that
of a RAID
of a RAID
10 SAS volume, but it
should not be considered an
equivalent. When the
performance needs are moderate
and large capacity is required, a
hybrid volume is viable only when
paired with SATA disks that are
configured in a RAID
equivalent. When the
performance needs are moderate
and large capacity is required, a
hybrid volume is viable only when
paired with SATA disks that are
configured in a RAID
10 or
RAID
5+0 volume.
D&D reads
172 Mbps
Not measured
4k random writes
1,498 IOPS
Not measured
4k random reads
2,665 IOPS
Not measured
4k sequential writes 104,714 IOPS Not measured
4k sequential reads
189,297 IOPS Not measured
RAID 5+0 x4
This volume consists
of three disks that
have been expanded
three times for a total
of four RAID groups.
of three disks that
have been expanded
three times for a total
of four RAID groups.
D&D writes
617 Mbps
724 Mbps
RAID
5+0 provides higher
performance than RAID
5,
RAID
6, or RAID
6+0. You can
use RAID 5+0 for file serving,
backup, and archive applications,
but RAID 5+0 is not
recommended for storage
applications that are sensitive to
latency.
backup, and archive applications,
but RAID 5+0 is not
recommended for storage
applications that are sensitive to
latency.
D&D reads
111 Mbps
139 Mbps
4k random writes
995 IOPS
2,202 IOPS
4k random reads
1,910 IOPS
3,778 IOPS
4k sequential writes 48,581 IOPS
114,316 IOPS
4k sequential reads
154,625 IOPS 155,655 IOPS