Dell EqualLogic PS6610ES EqualLogic PS6610 Storage Arrays Hardware Owners Manu - Page 15

Drive, Maintenance

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2 Drive Maintenance You can replace a failed drive while the array remains running. Supported Drives and Drive Types Depending on your configuration, your array supports either 42 or 84 of the 2.5-inch and 3.5-inch SAS nad NL-SAS drives in internal drive bays. SSD drives are also supported in a hybrid configuration. Drives are connected to the midplanes and backplane through drive carriers and are hot-swappable. Drives are supplied in a carrier that is keyed to fit into a specific array model. The drives cannot be installed in other Dell arrays or in arrays not from Dell. Note: Dell uses specially qualified and tested hard drives for its EqualLogic storage systems, and manages hard drive quality and firmware only for those drives. As a result, only Dell-provided hard drives are supported by PS Series arrays. Attempts to use unapproved hard drives in the PS6610 array will not be successful. Mixed-Drive (Hybrid) Arrays The PS6610ES supports a combination of fourteen (14) solid state drives (SSDs) and seventy (70) rotational drives (HDs) in the array. The proportion of SSDs to HDs cannot be changed. SSDs must all be installed in the same row in slots 0-13. See Disk-Drive Slot Numbers on page 10. Drive Installation Guidelines and Restrictions It is extremely important to install the disk drives properly and maintain the performance of disk drives to ensure optimal operation of the array. Only two drive configurations are supported: the half-populated array (42 drives) and the fully- populated array (84 drives). Caution: In a half-populated array, the drives must be installed in specific rows across both drawers of the array. In a fully-populated hybrid array, the SSDs must be installed in a specific row. See the following list for more information. The following restrictions apply when installing disk drives: • When installing 42 drives, the array must have 2 complete rows of HDs in the top drawer (slots 0-27) and 1 complete row of HDs in the bottom drawer (slots 42-55). See Disk-Drive Slot Numbers on page 10. • When installing 84 drives, an optional hybrid configuration can be purchased that combines exactly 14 SSDs with 70 rotational drives (HDs). In hybrid arrays, the 14 SSDs must be inserted in the front row of the top drawer (slot locations 0-13). The proportion of SSDs to HDs cannot be changed. See Disk-Drive Slot Numbers on page 10. • Do not leave any drive slots empty in a populated row. Operating an array with an empty slot will void your warranty and support contract. Drive Handling Requirements When handling hard drives, take the following precautions: 9

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2
Drive
Maintenance
You
can
replace
a
failed
drive
while
the
array
remains
running.
Supported
Drives
and
Drive
Types
Depending
on
your
configuration,
your
array
supports
either
42
or
84
of
the
2.5-inch
and
3.5-inch
SAS
nad
NL-SAS
drives
in
internal
drive
bays.
SSD
drives
are
also
supported
in
a
hybrid
configuration.
Drives
are
connected
to
the
midplanes
and
backplane
through
drive
carriers
and
are
hot-swappable.
Drives
are
supplied
in
a
carrier
that
is
keyed
to
fit
into
a
specific
array
model.
The
drives
cannot
be
installed
in
other
Dell
arrays
or
in
arrays
not
from
Dell.
Note:
Dell
uses
specially
qualified
and
tested
hard
drives
for
its
EqualLogic
storage
systems,
and
manages
hard
drive
quality
and
firmware
only
for
those
drives.
As
a
result,
only
Dell-provided
hard
drives
are
supported
by
PS
Series
arrays.
Attempts
to
use
unapproved
hard
drives
in
the
PS6610
array
will
not
be
successful.
Mixed-Drive
(Hybrid)
Arrays
The
PS6610ES
supports
a
combination
of
fourteen
(14)
solid
state
drives
(SSDs)
and
seventy
(70)
rotational
drives
(HDs)
in
the
array.
The
proportion
of
SSDs
to
HDs
cannot
be
changed.
SSDs
must
all
be
installed
in
the
same
row
in
slots
0-13.
See
Disk-Drive
Slot
Numbers
on
page
10
.
Drive
Installation
Guidelines
and
Restrictions
It
is
extremely
important
to
install
the
disk
drives
properly
and
maintain
the
performance
of
disk
drives
to
ensure
optimal
operation
of
the
array.
Only
two
drive
configurations
are
supported:
the
half-populated
array
(42
drives)
and
the
fully-
populated
array
(84
drives).
Caution:
In
a
half-populated
array,
the
drives
must
be
installed
in
specific
rows
across
both
drawers
of
the
array.
In
a
fully-populated
hybrid
array,
the
SSDs
must
be
installed
in
a
specific
row.
See
the
following
list
for
more
information.
The
following
restrictions
apply
when
installing
disk
drives:
•
When
installing
42
drives,
the
array
must
have
2
complete
rows
of
HDs
in
the
top
drawer
(slots
0-27)
and
1
complete
row
of
HDs
in
the
bottom
drawer
(slots
42-55).
See
Disk-Drive
Slot
Numbers
on
page
10
.
•
When
installing
84
drives,
an
optional
hybrid
configuration
can
be
purchased
that
combines
exactly
14
SSDs
with
70
rotational
drives
(HDs).
In
hybrid
arrays,
the
14
SSDs
must
be
inserted
in
the
front
row
of
the
top
drawer
(slot
locations
0-13).
The
proportion
of
SSDs
to
HDs
cannot
be
changed.
See
Disk-Drive
Slot
Numbers
on
page
10
.
•
Do
not
leave
any
drive
slots
empty
in
a
populated
row.
Operating
an
array
with
an
empty
slot
will
void
your
warranty
and
support
contract.
Drive
Handling
Requirements
When
handling
hard
drives,
take
the
following
precautions:
9