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Dell SPEED Guru Exams > SPEED Powerstore > Flashcards

SPEED Powerstore Flashcards

1
Q

What is a container?

A

executable, lightweight, stand alone software package

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2
Q

What is the benefit of containers?

A

packages up all code and dependencies - application code, runtime, software libraries

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3
Q

What is Docker?

A

software platform for building applications based on Containers

facilitates easy deployment of applications inside software containers

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4
Q

What is the benefit of Docker?

A

provides a layer of abstraction to make shared use of the operating system kernel

isolates these applications from one another

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5
Q

What is the node operating system for Powerstore T?

A

Container Linux

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6
Q

How is a Powerstore cluster all connected?

A

over a management IP network

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7
Q

What is Journald?

A

background process that runs on every node

when commands are routed between appliances/nodes - log messages will be split between

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8
Q

What is the processor on Powerstore?

A

Intel Skylake

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9
Q

What are the available IO modules on Powerstore?

A

4 port 25GbE
4 port 10G BASE-T
4 port 32Gb FC

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10
Q

What is true about DRE?

A

can span across physical enclosures in the appliances and have mixed drive sizes

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11
Q

What is the spare rule for DRE?

A

each fault resiliency set reserves spare space equal to 1 physical drive (1 of 25)

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12
Q

What is the stripe width rule on DRE?

A

4 data + 1 parity when between 6 and 9 drives

8 data + 1 parity over 9 drives

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13
Q

What is a caveat when it comes to stripe width on DRE?

A

full stripe writes occur regardless of 4+1 or 8+1

rebuild performance favors 8+1 (why it’s recommended to start at 10 drive minimum instead of 6)

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14
Q

How are NAS Servers mounted on Powerstore?

A

run inside a container running on a node

each node has its own container for NAS

multiple NAS Servers can reside in the container

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15
Q

What are the recommendations for running NAS Servers on Powerstore?

A

multiple NAS servers are recommended to balance load across nodes

NAS Servers run on a preferred node except in the case of a node failure

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16
Q

What protection schema does Powerstore have for NAS Servers?

A

automatic failover from one NAS node to the other

failover generally completes within 30 seconds to avoid host timeouts - failback is a manual process

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17
Q

What protection schema does Powerstore have for file data?

A

NDMP (network data management protocol)

backup and recovery protocol used to transport data between NAS and backup systems

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18
Q

What kind of NDMP is available on Powerstore?

A

3-way NDMP

transfers both metadata and backup data over LAN

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19
Q

What are the minimum and maximum sizes for file systems on Powerstore?

A

3GB

256TBs

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20
Q

What are file system quotas?

A

provides the ability to regulate capacity consumption

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21
Q

What file system quota options are available on Powerstore?

A

user quotas - limits capacity consumed by individual user

tree quotas - limits capacity consumed on a specific directory on the file system

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22
Q

What RPO values are available on Powerstore?

A

5min - 24hr - leverages Powerstore snapshot technology (like Unity)

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23
Q

What are the available replication topologies for Powerstore?

A

one to one (uni directional or bi directional)

one to many

many to one

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24
Q

What are the max VLANs per appliance?

A

256

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25
Q

What are the max volumes/clones on 500T?

A

1500

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26
Q

What are the max volumes in a volume group per appliance?

A

75

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27
Q

What is the max volume size on Powerstore?

A

256TB

28
Q

What is the max volume groups per appliance?

A

125

29
Q

What are the max QoS policies per cluster?

A

100

30
Q

What is the max file system size?

A

256TBs

31
Q

What is the max number of file systems on 500T?

A

1500

32
Q

What is the max NAS Servers on 500T?

A

50

33
Q

What are the max number of file systems per NAS Servers?

A

125

34
Q

What are the maximum number of file systems that can be replicated on Powerstore?

A

125

35
Q

What is the hierarchical clone limit on Powerstore?

A

4

36
Q

What is the max replicated volumes for 500T when RPO is greater than 15 minutes?

A

125

37
Q

What is the max replicated volumes for 500T when RPO is at 5 minutes?

A

75

38
Q

What are the max number of synchronously replicated volumes on 500T

A

125

39
Q

What are the max number of synchronously replicated file systems per appliance on 500T?

A

125

40
Q

What are the max remotely protected objects per appliance on 500T?

A

125

41
Q

What are the max metro object protected per appliance on 500T?

A

128

42
Q

What are the max metro resources protected per cluster on Powerstore?

A

2048

43
Q

What are the max concurrent NDMP sessions per node on 500T?

A

4

44
Q

What is the max vVol size on Powerstore?

A

62TBs

45
Q

What is the max number of vVols on 500T per appliance?

A

5700

46
Q

What are the max number of systems for block import?

A

6

47
Q

What are the max number of hosts for block import?

A

64

48
Q

What protocols are vVols supported on?

A

FC, iSCSI, NVMe/FC, NVMe/TCP

49
Q

What is the max number of hosts in a cluster on Powerstore?

A

4000

50
Q

What are the max volumes per appliance for 1200T+?

A

1200 - 6000
3200 - 10000
5200 - 16000
9200 - 32000

51
Q

What are the max NAS Servers on Powerstore 1200T+?

A

50 - 1200
250 - 3200, 5200, 9200

52
Q

What are the max file shares on Powerstore 1200T+?

A

8000

53
Q

What are the max replicated volumes on 1200T+ when RPO is 15 mnutes or higher?

A

1000

54
Q

What are the max replicated volumes on 1200T+ when RPO is at 5 minutes?

A

200

55
Q

What are the max synchronously replicated volumes on 1200T+?

A

1000

56
Q

What are the max synchronously replicated file systems on 1200T+?

A

1200 - 250
3200 - 250
5200 - 500
9200 - 500

57
Q

What are the max metro protected storage objects on 1200T+?

A

1200 - 256
3200 - 256
5200 - 512
9200 - 512

58
Q

What are the max metro protected storage objects on 1200T+ clusters?

A

2048

59
Q

What are the max concurrent NDMP Sessions per node on 1200T+?

A

20

60
Q

What is the max number of vVols on 1200T+?

A

1200 - 10600
3200 - 11600
5200 - 13600
9200 - 16000

61
Q

What block resource is still not supported with synchronous replication?

A

vVols

62
Q

What types of NDMP does Powerstore not support?

A

2-way
Tape

63
Q

What are the IO modules not available on 500T?

A

4 port 10G BASE-T
2 port 100Gb/s Opt

64
Q

What IO modules are available on all Powerstore models?

A

4 port 25GB/s opt.
4 port 32GB/s FC

65
Q

What IO module is only available on 500T?

A

2 port 10Gb/s opt.

66
Q

What systems does Powerstore have native block migration with?

A

Unity XT, VNX, SC, PS, FC/iSCSI source arrays

67
Q

What systems does Powerstore have native file migration with?

A

VNX, Unity, Datadobi for third party arrays

Dell SPEED Guru Exams (8 decks)

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