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Pure Storage New Hire > FlashBlade > Flashcards

FlashBlade Flashcards

1
Q

FIOM (Fabric I/O Module) Ethernet uplink connections speeds

A

100 GbE
40 GbE
25 Gbe
10 GbE

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2
Q

FIOM uplink port transceivers

A

QSFP28

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3
Q

How does FlashBlade support LACP?

A

Multi-Chassis Link Aggregation (MLAG) to form LACP bonds with the upstream switches

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4
Q

Does FlashBlade support InfiniBand?

A

No

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5
Q

Does FlashBlade support UDP?

A

No

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6
Q

Versions of NFS supported on FlashBlade

A

NFSv3
NFSv4.1

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7
Q

How to support user membership above 16 groups

A

Configure a Directory Service for NFS (OpenLDAP, Active Directory or NIS)

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8
Q

Which protocol is stateful, NFSv3 of NFSv4.1?

A

NFSv4.1

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9
Q

Which protocol supports Kerberos authentication?

A

NFSv4.1

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10
Q

Which protocol supports nconnect?

A

NFSv3

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11
Q

Name the Directory Services required for Kerberos authentication with NFSv4.1

A

OpenLDAP
Active Directory
NIS

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12
Q

What is an NFS export policy?

A

A set of export rules.

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13
Q

Versions of SMB supported on FlashBlade

A

SMB 2.1
SMB 3.1.1

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14
Q

Supported SMB 3.1.1 encryption types for data in transit

A

AES-128-GCM
AES-128-CCM
AES-256-GCM
AES-256-CCM

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15
Q

Typical overhead of SMB 3.1.1 encryption

A

10-15%

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16
Q

Does FlashBlade support SMB 3.1.1 Continuous Availability (CA)?

A

No

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17
Q

If the file or directory was created by an SMB client, the owner has a SID or a UID?

A

SID

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18
Q

If the file or directory was created by an NFS client, the owner has a SID or a UID?

A

UID

19
Q

Which attributes are enabled in Active Directory to allow Unix user and group information to be stored along with the Windows SID?

A

RFC 2307

20
Q

Permissions can be set on the individual SMB share level from the FlashBlade using Share Policies from which version of Purity//FB?

A

Purity//FB 4.1.0+

21
Q

Name the three Acccess Control Styles (ACS) used to determine how SMB and NFS permissions interact when clients make changes to the file system’s permissions on files and directories

A

Shared (default)
NFS
SMB

22
Q

What do SafeGuard ACLs do?

A

SafeGuard ACLs help preserve NFSv4.1 or Windows (NTFS) ACLs and prevents overwrites from POSIX (mode bits) clients.

23
Q

How many live snapshots does FlashBlade support?

A

Up to 100,000 live snapshots on the array and 512 snapshots per file system

24
Q

What is the maximum throughput from one FlashBlade//S chassis?

A

800 Gb/s
100 GB/s
360 TB/hr

25
Q

How many blades per FlashBlade//S chassis/

A

Min 7
Max 10

26
Q

How many DFMs per blade in FlashBlade//S?

A

Min 1
Max 4

27
Q

Maximum number of blades in a FlashBlade//S system?

A

50

28
Q

What is the Rapid File Toolkit (RFT)?

A

A set of supercharged tools designed to efficiently manage millions of files using familiar Linux command line interfaces

29
Q

What does nconnect for NFS do?

A

It allows the client to open multiple TCP connections with the server, which boost overall NFS performance through parallelization

30
Q

Throughput per blade

A

1 GB/s read
300 MB/s write

31
Q

Maximum blades per system

A

150

32
Q

Number of authorities

A

128

33
Q

Minimum version of Purity//FB for multi-chassis

A

Purity//FB 4.1.5

34
Q

Minimum version of Purity//FB for NDU from First-gen to FB//S

A

Purity//FB 4.3.0

35
Q

What is the block size?

A

512 B variable block size

36
Q

Maximum number of blades in a First-generation FlashBlade system?

A

150

37
Q

Minimum system size for FlashBlade//E

A

3.8 PB
1 Control Chassis + 1 Expansion Chassis

38
Q

Maximum system size for FlashBlade//E

A

7.6 PB
1 Control Chassis + 3 Expansion Chassis

39
Q

How many rack U is the First-generation FlashBlade chassis?

A

4U

40
Q

How many rack U is the FlashBlade//S chassis?

A

5U

41
Q

What load balances incoming client streams across the available blades?

A

ECMP
(Equal Cost Multi-Pathing)

42
Q

SafeMode eradication timer on FlashBlade can be set from how many days to a maximum of what?

A

SafeMode allows the eradication timer to be adjusted from 24 hours up to 400 days

43
Q
A

Pure Storage New Hire (4 decks)

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