SPEED Powerstore Flashcards
What is a container?
executable, lightweight, stand alone software package
What is the benefit of containers?
packages up all code and dependencies - application code, runtime, software libraries
What is Docker?
software platform for building applications based on Containers
facilitates easy deployment of applications inside software containers
What is the benefit of Docker?
provides a layer of abstraction to make shared use of the operating system kernel
isolates these applications from one another
What is the node operating system for Powerstore T?
Container Linux
How is a Powerstore cluster all connected?
over a management IP network
What is Journald?
background process that runs on every node
when commands are routed between appliances/nodes - log messages will be split between
What is the processor on Powerstore?
Intel Skylake
What are the available IO modules on Powerstore?
4 port 25GbE
4 port 10G BASE-T
4 port 32Gb FC
What is true about DRE?
can span across physical enclosures in the appliances and have mixed drive sizes
What is the spare rule for DRE?
each fault resiliency set reserves spare space equal to 1 physical drive (1 of 25)
What is the stripe width rule on DRE?
4 data + 1 parity when between 6 and 9 drives
8 data + 1 parity over 9 drives
What is a caveat when it comes to stripe width on DRE?
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)
How are NAS Servers mounted on Powerstore?
run inside a container running on a node
each node has its own container for NAS
multiple NAS Servers can reside in the container
What are the recommendations for running NAS Servers on Powerstore?
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
What protection schema does Powerstore have for NAS Servers?
automatic failover from one NAS node to the other
failover generally completes within 30 seconds to avoid host timeouts - failback is a manual process
What protection schema does Powerstore have for file data?
NDMP (network data management protocol)
backup and recovery protocol used to transport data between NAS and backup systems
What kind of NDMP is available on Powerstore?
3-way NDMP
transfers both metadata and backup data over LAN
What are the minimum and maximum sizes for file systems on Powerstore?
3GB
256TBs
What are file system quotas?
provides the ability to regulate capacity consumption
What file system quota options are available on Powerstore?
user quotas - limits capacity consumed by individual user
tree quotas - limits capacity consumed on a specific directory on the file system
What RPO values are available on Powerstore?
5min - 24hr - leverages Powerstore snapshot technology (like Unity)
What are the available replication topologies for Powerstore?
one to one (uni directional or bi directional)
one to many
many to one
What are the max VLANs per appliance?
256
What are the max volumes/clones on 500T?
1500
What are the max volumes in a volume group per appliance?
75
What is the max volume size on Powerstore?
256TB
What is the max volume groups per appliance?
125
What are the max QoS policies per cluster?
100
What is the max file system size?
256TBs
What is the max number of file systems on 500T?
1500
What is the max NAS Servers on 500T?
50
What are the max number of file systems per NAS Servers?
125
What are the maximum number of file systems that can be replicated on Powerstore?
125
What is the hierarchical clone limit on Powerstore?
4
What is the max replicated volumes for 500T when RPO is greater than 15 minutes?
125
What is the max replicated volumes for 500T when RPO is at 5 minutes?
75
What are the max number of synchronously replicated volumes on 500T
125
What are the max number of synchronously replicated file systems per appliance on 500T?
125
What are the max remotely protected objects per appliance on 500T?
125
What are the max metro object protected per appliance on 500T?
128
What are the max metro resources protected per cluster on Powerstore?
2048
What are the max concurrent NDMP sessions per node on 500T?
4
What is the max vVol size on Powerstore?
62TBs
What is the max number of vVols on 500T per appliance?
5700
What are the max number of systems for block import?
6
What are the max number of hosts for block import?
64
What protocols are vVols supported on?
FC, iSCSI, NVMe/FC, NVMe/TCP
What is the max number of hosts in a cluster on Powerstore?
4000
What are the max volumes per appliance for 1200T+?
1200 - 6000
3200 - 10000
5200 - 16000
9200 - 32000
What are the max NAS Servers on Powerstore 1200T+?
50 - 1200
250 - 3200, 5200, 9200
What are the max file shares on Powerstore 1200T+?
8000
What are the max replicated volumes on 1200T+ when RPO is 15 mnutes or higher?
1000
What are the max replicated volumes on 1200T+ when RPO is at 5 minutes?
200
What are the max synchronously replicated volumes on 1200T+?
1000
What are the max synchronously replicated file systems on 1200T+?
1200 - 250
3200 - 250
5200 - 500
9200 - 500
What are the max metro protected storage objects on 1200T+?
1200 - 256
3200 - 256
5200 - 512
9200 - 512
What are the max metro protected storage objects on 1200T+ clusters?
2048
What are the max concurrent NDMP Sessions per node on 1200T+?
20
What is the max number of vVols on 1200T+?
1200 - 10600
3200 - 11600
5200 - 13600
9200 - 16000
What block resource is still not supported with synchronous replication?
vVols
What types of NDMP does Powerstore not support?
2-way
Tape
What are the IO modules not available on 500T?
4 port 10G BASE-T
2 port 100Gb/s Opt
What IO modules are available on all Powerstore models?
4 port 25GB/s opt.
4 port 32GB/s FC
What IO module is only available on 500T?
2 port 10Gb/s opt.
What systems does Powerstore have native block migration with?
Unity XT, VNX, SC, PS, FC/iSCSI source arrays
What systems does Powerstore have native file migration with?
VNX, Unity, Datadobi for third party arrays
