Re: [quadstor-vtl] Slow backup performance

[QUADStor VTL Support]

Hi,

Please set USEOPTBLK to *YES

https://www.ibm.com/support/pages/save-command-parameters-affect-performance

USEOPTBLK(*YES) DTACPR(*DEV) COMPACT(*DEV)

There isn't a way to set a specific blocks size, but with the above 256k
block size should be used



On Wed, Aug 2, 2023 at 12:25 PM Ribeiro Francisco 
wrote:

> Hello,
>
> Thanks for the tip. It seems that we cannot define the block size in the
> BRMS software. Is there any way to specify it in the VTL structure?
>
> Em ter., 1 de ago. de 2023 às 19:08, QUADStor VTL Support <
> vtlsupp...@quadstor.com> escreveu:
>
>> Hi,
>>
>> The correct block size and separating the ports for target and initiator
>> traffic should be sufficient. If performance is preferred over space
>> savings, non-dedupe pools will always give consistent performance and is
>> not data dependent like the dedupe pools.
>> For the disks/luns configured in the physical storage do not use thin
>> provisioned luns.
>>
>> On Wed, Jul 26, 2023 at 11:08 PM Ribeiro Francisco <
>> francisco7...@gmail.com> wrote:
>>
>>> Hi,
>>>
>>> After adjusting the block size parameter in my tar command I was able to
>>> get the desired speeds. Is there any setting that we should adjust in the
>>> quadstor configure?
>>>
>>> Kind regars
>>>
>>> A terça, 25/07/2023, 18:01, Ribeiro Francisco 
>>> escreveu:
>>>
 Hello,

 In IBMi we are using BRMS. In Linux we're using the tar command without
 z option.
 We are going to try to modify the port mode and I'll report you back.

 Kind regards


 A domingo, 23/07/2023, 19:01, QUADStor VTL Support <
 vtlsupp...@quadstor.com> escreveu:

> Hi,
>
> There are two VTL HBA ports. One of them should be set to initiator
> mode while the other should be set to target-mode.
> This will help segregate tape  and disk transfers.
> The mode can be changed from the GUI "Access Management" page.
> Under "Target Port Configuration" for one WWPN click on Modify and
> select Initiator and for the other WWPN select "Target"
> The switch zoning can be changed appropriately to allow access for the
> hosts to only the target mode WWPN.
>
> From one of the drive statistics
>
> write_bytes_processed: 1335859200
> write_cmds: 260910
>
> This is an average of 5120  bytes per command which is very small.
> There were other backups but it looks like the system was restarted
> and this was the only backup for which we have stats maintained.
> Which backup application is used to copy files from the linux
> partition ? Is LTFS being used ?
>
>
> On Sat, Jul 22, 2023 at 9:03 AM Ribeiro Francisco <
> francisco7...@gmail.com> wrote:
>
>> Hello,
>>
>> I've deleted my previous reply since you asked me to send the logs to
>> that specific email.
>> Logs were sent.
>> Also, yes, the physical tape is connected to the same partition.
>>
>> Kind regards
>>
>>
>> A sexta-feira, 21 de julho de 2023 à(s) 15:54:22 UTC+1, quadstor
>> escreveu:
>>
>>> Hi,
>>>
>>> Please send the diagnostic logs (HTML UI -> System Page -> Run
>>> Diagnostics -> Submit). You can send the logs to
>>> vtlsu...@quadstor.com
>>>
>>> Is the backup to physical tape connected to the same partition ?
>>> What is the backup speed to physical tape ?
>>>
>>>
>>> On Fri, Jul 21, 2023 at 3:52 PM Ribeiro Francisco <
>>> franci...@gmail.com> wrote:
>>>
 Hello,

 We have the following scenario:
 A Lenovo Server with 64GB Memory and an Intel(R) Xeon(R) Silver
 4314 CPU @ 2.40GHz processor with a fibre channel connection to a SAN
 switch, through a QLogic adapter.
 An IBM Power 10 connected to the same SAN switch, with a linux
 partition to test the backup performance
 The Lenovo VTL server as a LUN created in an IBM storage (SSD
 disks). The linux partition also have SSD disks.
 If we write in that LUN using the VTL, we have no performance
 issues. If we write in the linux IBM partition disks using the linux
 partition we do not have any performance problem. But if we try to copy
 files to the VTL using the linux partition (or even the IBMi), it takes
 twice the time to do the same backup to a real Tape. Is it normal? We 
 are
 not using compression or deduplication.

 Kind Regards

 --
 You received this message because you are subscribed to the Google
 Groups "QUADStor VTL" group.
 To unsubscribe from this group and stop receiving emails from it,
 send an email to quadstor-vtl...@googlegroups.com.
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Re: [quadstor-vtl] Slow backup performance

[Ribeiro Francisco]

Hello,

Thanks for the tip. It seems that we cannot define the block size in the
BRMS software. Is there any way to specify it in the VTL structure?

Em ter., 1 de ago. de 2023 às 19:08, QUADStor VTL Support <
vtlsupp...@quadstor.com> escreveu:

> Hi,
>
> The correct block size and separating the ports for target and initiator
> traffic should be sufficient. If performance is preferred over space
> savings, non-dedupe pools will always give consistent performance and is
> not data dependent like the dedupe pools.
> For the disks/luns configured in the physical storage do not use thin
> provisioned luns.
>
> On Wed, Jul 26, 2023 at 11:08 PM Ribeiro Francisco <
> francisco7...@gmail.com> wrote:
>
>> Hi,
>>
>> After adjusting the block size parameter in my tar command I was able to
>> get the desired speeds. Is there any setting that we should adjust in the
>> quadstor configure?
>>
>> Kind regars
>>
>> A terça, 25/07/2023, 18:01, Ribeiro Francisco 
>> escreveu:
>>
>>> Hello,
>>>
>>> In IBMi we are using BRMS. In Linux we're using the tar command without
>>> z option.
>>> We are going to try to modify the port mode and I'll report you back.
>>>
>>> Kind regards
>>>
>>>
>>> A domingo, 23/07/2023, 19:01, QUADStor VTL Support <
>>> vtlsupp...@quadstor.com> escreveu:
>>>
 Hi,

 There are two VTL HBA ports. One of them should be set to initiator
 mode while the other should be set to target-mode.
 This will help segregate tape  and disk transfers.
 The mode can be changed from the GUI "Access Management" page.
 Under "Target Port Configuration" for one WWPN click on Modify and
 select Initiator and for the other WWPN select "Target"
 The switch zoning can be changed appropriately to allow access for the
 hosts to only the target mode WWPN.

 From one of the drive statistics

 write_bytes_processed: 1335859200
 write_cmds: 260910

 This is an average of 5120  bytes per command which is very small.
 There were other backups but it looks like the system was restarted and
 this was the only backup for which we have stats maintained.
 Which backup application is used to copy files from the linux partition
 ? Is LTFS being used ?


 On Sat, Jul 22, 2023 at 9:03 AM Ribeiro Francisco <
 francisco7...@gmail.com> wrote:

> Hello,
>
> I've deleted my previous reply since you asked me to send the logs to
> that specific email.
> Logs were sent.
> Also, yes, the physical tape is connected to the same partition.
>
> Kind regards
>
>
> A sexta-feira, 21 de julho de 2023 à(s) 15:54:22 UTC+1, quadstor
> escreveu:
>
>> Hi,
>>
>> Please send the diagnostic logs (HTML UI -> System Page -> Run
>> Diagnostics -> Submit). You can send the logs to
>> vtlsu...@quadstor.com
>>
>> Is the backup to physical tape connected to the same partition ? What
>> is the backup speed to physical tape ?
>>
>>
>> On Fri, Jul 21, 2023 at 3:52 PM Ribeiro Francisco <
>> franci...@gmail.com> wrote:
>>
>>> Hello,
>>>
>>> We have the following scenario:
>>> A Lenovo Server with 64GB Memory and an Intel(R) Xeon(R) Silver 4314
>>> CPU @ 2.40GHz processor with a fibre channel connection to a SAN switch,
>>> through a QLogic adapter.
>>> An IBM Power 10 connected to the same SAN switch, with a linux
>>> partition to test the backup performance
>>> The Lenovo VTL server as a LUN created in an IBM storage (SSD
>>> disks). The linux partition also have SSD disks.
>>> If we write in that LUN using the VTL, we have no performance
>>> issues. If we write in the linux IBM partition disks using the linux
>>> partition we do not have any performance problem. But if we try to copy
>>> files to the VTL using the linux partition (or even the IBMi), it takes
>>> twice the time to do the same backup to a real Tape. Is it normal? We 
>>> are
>>> not using compression or deduplication.
>>>
>>> Kind Regards
>>>
>>> --
>>> You received this message because you are subscribed to the Google
>>> Groups "QUADStor VTL" group.
>>> To unsubscribe from this group and stop receiving emails from it,
>>> send an email to quadstor-vtl...@googlegroups.com.
>>> To view this discussion on the web visit
>>> https://groups.google.com/d/msgid/quadstor-vtl/c656564d-0180-421f-bc2d-4b69c143f4c8n%40googlegroups.com
>>> 
>>> .
>>>
>> --
> You received this message because you are subscribed to the Google
> Groups "QUADStor VTL" group.
> To unsubscribe from this group and stop receiving emails from it, send
> an email to quadstor-vtl+unsubscr...@googlegroups.com.
> To view this discussion on the web visit
> 

Re: [quadstor-vtl] Slow backup performance

[QUADStor VTL Support]

Hi,

The correct block size and separating the ports for target and initiator
traffic should be sufficient. If performance is preferred over space
savings, non-dedupe pools will always give consistent performance and is
not data dependent like the dedupe pools.
For the disks/luns configured in the physical storage do not use thin
provisioned luns.

On Wed, Jul 26, 2023 at 11:08 PM Ribeiro Francisco 
wrote:

> Hi,
>
> After adjusting the block size parameter in my tar command I was able to
> get the desired speeds. Is there any setting that we should adjust in the
> quadstor configure?
>
> Kind regars
>
> A terça, 25/07/2023, 18:01, Ribeiro Francisco 
> escreveu:
>
>> Hello,
>>
>> In IBMi we are using BRMS. In Linux we're using the tar command without z
>> option.
>> We are going to try to modify the port mode and I'll report you back.
>>
>> Kind regards
>>
>>
>> A domingo, 23/07/2023, 19:01, QUADStor VTL Support <
>> vtlsupp...@quadstor.com> escreveu:
>>
>>> Hi,
>>>
>>> There are two VTL HBA ports. One of them should be set to initiator mode
>>> while the other should be set to target-mode.
>>> This will help segregate tape  and disk transfers.
>>> The mode can be changed from the GUI "Access Management" page.
>>> Under "Target Port Configuration" for one WWPN click on Modify and
>>> select Initiator and for the other WWPN select "Target"
>>> The switch zoning can be changed appropriately to allow access for the
>>> hosts to only the target mode WWPN.
>>>
>>> From one of the drive statistics
>>>
>>> write_bytes_processed: 1335859200
>>> write_cmds: 260910
>>>
>>> This is an average of 5120  bytes per command which is very small.
>>> There were other backups but it looks like the system was restarted and
>>> this was the only backup for which we have stats maintained.
>>> Which backup application is used to copy files from the linux partition
>>> ? Is LTFS being used ?
>>>
>>>
>>> On Sat, Jul 22, 2023 at 9:03 AM Ribeiro Francisco <
>>> francisco7...@gmail.com> wrote:
>>>
 Hello,

 I've deleted my previous reply since you asked me to send the logs to
 that specific email.
 Logs were sent.
 Also, yes, the physical tape is connected to the same partition.

 Kind regards


 A sexta-feira, 21 de julho de 2023 à(s) 15:54:22 UTC+1, quadstor
 escreveu:

> Hi,
>
> Please send the diagnostic logs (HTML UI -> System Page -> Run
> Diagnostics -> Submit). You can send the logs to vtlsu...@quadstor.com
>
> Is the backup to physical tape connected to the same partition ? What
> is the backup speed to physical tape ?
>
>
> On Fri, Jul 21, 2023 at 3:52 PM Ribeiro Francisco 
> wrote:
>
>> Hello,
>>
>> We have the following scenario:
>> A Lenovo Server with 64GB Memory and an Intel(R) Xeon(R) Silver 4314
>> CPU @ 2.40GHz processor with a fibre channel connection to a SAN switch,
>> through a QLogic adapter.
>> An IBM Power 10 connected to the same SAN switch, with a linux
>> partition to test the backup performance
>> The Lenovo VTL server as a LUN created in an IBM storage (SSD disks).
>> The linux partition also have SSD disks.
>> If we write in that LUN using the VTL, we have no performance issues.
>> If we write in the linux IBM partition disks using the linux partition we
>> do not have any performance problem. But if we try to copy files to the 
>> VTL
>> using the linux partition (or even the IBMi), it takes twice the time to 
>> do
>> the same backup to a real Tape. Is it normal? We are not using 
>> compression
>> or deduplication.
>>
>> Kind Regards
>>
>> --
>> You received this message because you are subscribed to the Google
>> Groups "QUADStor VTL" group.
>> To unsubscribe from this group and stop receiving emails from it,
>> send an email to quadstor-vtl...@googlegroups.com.
>> To view this discussion on the web visit
>> https://groups.google.com/d/msgid/quadstor-vtl/c656564d-0180-421f-bc2d-4b69c143f4c8n%40googlegroups.com
>> 
>> .
>>
> --
 You received this message because you are subscribed to the Google
 Groups "QUADStor VTL" group.
 To unsubscribe from this group and stop receiving emails from it, send
 an email to quadstor-vtl+unsubscr...@googlegroups.com.
 To view this discussion on the web visit
 https://groups.google.com/d/msgid/quadstor-vtl/97f65d0d-72f6-497a-9ee1-63cf3b0f7e41n%40googlegroups.com
 
 .

>>> --
>>> You received this message because you are subscribed to the Google
>>> Groups "QUADStor VTL" group.
>>> To unsubscribe from this group and stop receiving emails 

Re: [quadstor-vtl] Slow backup performance

[Ribeiro Francisco]

Hi,

After adjusting the block size parameter in my tar command I was able to
get the desired speeds. Is there any setting that we should adjust in the
quadstor configure?

Kind regars

A terça, 25/07/2023, 18:01, Ribeiro Francisco 
escreveu:

> Hello,
>
> In IBMi we are using BRMS. In Linux we're using the tar command without z
> option.
> We are going to try to modify the port mode and I'll report you back.
>
> Kind regards
>
>
> A domingo, 23/07/2023, 19:01, QUADStor VTL Support <
> vtlsupp...@quadstor.com> escreveu:
>
>> Hi,
>>
>> There are two VTL HBA ports. One of them should be set to initiator mode
>> while the other should be set to target-mode.
>> This will help segregate tape  and disk transfers.
>> The mode can be changed from the GUI "Access Management" page.
>> Under "Target Port Configuration" for one WWPN click on Modify and select
>> Initiator and for the other WWPN select "Target"
>> The switch zoning can be changed appropriately to allow access for the
>> hosts to only the target mode WWPN.
>>
>> From one of the drive statistics
>>
>> write_bytes_processed: 1335859200
>> write_cmds: 260910
>>
>> This is an average of 5120  bytes per command which is very small.
>> There were other backups but it looks like the system was restarted and
>> this was the only backup for which we have stats maintained.
>> Which backup application is used to copy files from the linux partition ?
>> Is LTFS being used ?
>>
>>
>> On Sat, Jul 22, 2023 at 9:03 AM Ribeiro Francisco <
>> francisco7...@gmail.com> wrote:
>>
>>> Hello,
>>>
>>> I've deleted my previous reply since you asked me to send the logs to
>>> that specific email.
>>> Logs were sent.
>>> Also, yes, the physical tape is connected to the same partition.
>>>
>>> Kind regards
>>>
>>>
>>> A sexta-feira, 21 de julho de 2023 à(s) 15:54:22 UTC+1, quadstor
>>> escreveu:
>>>
 Hi,

 Please send the diagnostic logs (HTML UI -> System Page -> Run
 Diagnostics -> Submit). You can send the logs to vtlsu...@quadstor.com

 Is the backup to physical tape connected to the same partition ? What
 is the backup speed to physical tape ?


 On Fri, Jul 21, 2023 at 3:52 PM Ribeiro Francisco 
 wrote:

> Hello,
>
> We have the following scenario:
> A Lenovo Server with 64GB Memory and an Intel(R) Xeon(R) Silver 4314
> CPU @ 2.40GHz processor with a fibre channel connection to a SAN switch,
> through a QLogic adapter.
> An IBM Power 10 connected to the same SAN switch, with a linux
> partition to test the backup performance
> The Lenovo VTL server as a LUN created in an IBM storage (SSD disks).
> The linux partition also have SSD disks.
> If we write in that LUN using the VTL, we have no performance issues.
> If we write in the linux IBM partition disks using the linux partition we
> do not have any performance problem. But if we try to copy files to the 
> VTL
> using the linux partition (or even the IBMi), it takes twice the time to 
> do
> the same backup to a real Tape. Is it normal? We are not using compression
> or deduplication.
>
> Kind Regards
>
> --
> You received this message because you are subscribed to the Google
> Groups "QUADStor VTL" group.
> To unsubscribe from this group and stop receiving emails from it, send
> an email to quadstor-vtl...@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/quadstor-vtl/c656564d-0180-421f-bc2d-4b69c143f4c8n%40googlegroups.com
> 
> .
>
 --
>>> You received this message because you are subscribed to the Google
>>> Groups "QUADStor VTL" group.
>>> To unsubscribe from this group and stop receiving emails from it, send
>>> an email to quadstor-vtl+unsubscr...@googlegroups.com.
>>> To view this discussion on the web visit
>>> https://groups.google.com/d/msgid/quadstor-vtl/97f65d0d-72f6-497a-9ee1-63cf3b0f7e41n%40googlegroups.com
>>> 
>>> .
>>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "QUADStor VTL" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to quadstor-vtl+unsubscr...@googlegroups.com.
>> To view this discussion on the web visit
>> https://groups.google.com/d/msgid/quadstor-vtl/CAPEgkt5v0%2BZ7n9MCOpUtDFL_CgEUSLOnDdy2F%3DeD8qGk-AVaEA%40mail.gmail.com
>> 
>> .
>>
>

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Re: [quadstor-vtl] Slow backup performance

[Ribeiro Francisco]

Hello,

In IBMi we are using BRMS. In Linux we're using the tar command without z
option.
We are going to try to modify the port mode and I'll report you back.

Kind regards


A domingo, 23/07/2023, 19:01, QUADStor VTL Support 
escreveu:

> Hi,
>
> There are two VTL HBA ports. One of them should be set to initiator mode
> while the other should be set to target-mode.
> This will help segregate tape  and disk transfers.
> The mode can be changed from the GUI "Access Management" page.
> Under "Target Port Configuration" for one WWPN click on Modify and select
> Initiator and for the other WWPN select "Target"
> The switch zoning can be changed appropriately to allow access for the
> hosts to only the target mode WWPN.
>
> From one of the drive statistics
>
> write_bytes_processed: 1335859200
> write_cmds: 260910
>
> This is an average of 5120  bytes per command which is very small.
> There were other backups but it looks like the system was restarted and
> this was the only backup for which we have stats maintained.
> Which backup application is used to copy files from the linux partition ?
> Is LTFS being used ?
>
>
> On Sat, Jul 22, 2023 at 9:03 AM Ribeiro Francisco 
> wrote:
>
>> Hello,
>>
>> I've deleted my previous reply since you asked me to send the logs to
>> that specific email.
>> Logs were sent.
>> Also, yes, the physical tape is connected to the same partition.
>>
>> Kind regards
>>
>>
>> A sexta-feira, 21 de julho de 2023 à(s) 15:54:22 UTC+1, quadstor escreveu:
>>
>>> Hi,
>>>
>>> Please send the diagnostic logs (HTML UI -> System Page -> Run
>>> Diagnostics -> Submit). You can send the logs to vtlsu...@quadstor.com
>>>
>>> Is the backup to physical tape connected to the same partition ? What is
>>> the backup speed to physical tape ?
>>>
>>>
>>> On Fri, Jul 21, 2023 at 3:52 PM Ribeiro Francisco 
>>> wrote:
>>>
 Hello,

 We have the following scenario:
 A Lenovo Server with 64GB Memory and an Intel(R) Xeon(R) Silver 4314
 CPU @ 2.40GHz processor with a fibre channel connection to a SAN switch,
 through a QLogic adapter.
 An IBM Power 10 connected to the same SAN switch, with a linux
 partition to test the backup performance
 The Lenovo VTL server as a LUN created in an IBM storage (SSD disks).
 The linux partition also have SSD disks.
 If we write in that LUN using the VTL, we have no performance issues.
 If we write in the linux IBM partition disks using the linux partition we
 do not have any performance problem. But if we try to copy files to the VTL
 using the linux partition (or even the IBMi), it takes twice the time to do
 the same backup to a real Tape. Is it normal? We are not using compression
 or deduplication.

 Kind Regards

 --
 You received this message because you are subscribed to the Google
 Groups "QUADStor VTL" group.
 To unsubscribe from this group and stop receiving emails from it, send
 an email to quadstor-vtl...@googlegroups.com.
 To view this discussion on the web visit
 https://groups.google.com/d/msgid/quadstor-vtl/c656564d-0180-421f-bc2d-4b69c143f4c8n%40googlegroups.com
 
 .

>>> --
>> You received this message because you are subscribed to the Google Groups
>> "QUADStor VTL" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to quadstor-vtl+unsubscr...@googlegroups.com.
>> To view this discussion on the web visit
>> https://groups.google.com/d/msgid/quadstor-vtl/97f65d0d-72f6-497a-9ee1-63cf3b0f7e41n%40googlegroups.com
>> 
>> .
>>
> --
> You received this message because you are subscribed to the Google Groups
> "QUADStor VTL" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to quadstor-vtl+unsubscr...@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/quadstor-vtl/CAPEgkt5v0%2BZ7n9MCOpUtDFL_CgEUSLOnDdy2F%3DeD8qGk-AVaEA%40mail.gmail.com
> 
> .
>

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Re: [quadstor-vtl] Slow backup performance

[QUADStor VTL Support]

Hi,

There are two VTL HBA ports. One of them should be set to initiator mode
while the other should be set to target-mode.
This will help segregate tape  and disk transfers.
The mode can be changed from the GUI "Access Management" page.
Under "Target Port Configuration" for one WWPN click on Modify and select
Initiator and for the other WWPN select "Target"
The switch zoning can be changed appropriately to allow access for the
hosts to only the target mode WWPN.

>From one of the drive statistics

write_bytes_processed: 1335859200
write_cmds: 260910

This is an average of 5120  bytes per command which is very small.
There were other backups but it looks like the system was restarted and
this was the only backup for which we have stats maintained.
Which backup application is used to copy files from the linux partition ?
Is LTFS being used ?


On Sat, Jul 22, 2023 at 9:03 AM Ribeiro Francisco 
wrote:

> Hello,
>
> I've deleted my previous reply since you asked me to send the logs to that
> specific email.
> Logs were sent.
> Also, yes, the physical tape is connected to the same partition.
>
> Kind regards
>
>
> A sexta-feira, 21 de julho de 2023 à(s) 15:54:22 UTC+1, quadstor escreveu:
>
>> Hi,
>>
>> Please send the diagnostic logs (HTML UI -> System Page -> Run
>> Diagnostics -> Submit). You can send the logs to vtlsu...@quadstor.com
>>
>> Is the backup to physical tape connected to the same partition ? What is
>> the backup speed to physical tape ?
>>
>>
>> On Fri, Jul 21, 2023 at 3:52 PM Ribeiro Francisco 
>> wrote:
>>
>>> Hello,
>>>
>>> We have the following scenario:
>>> A Lenovo Server with 64GB Memory and an Intel(R) Xeon(R) Silver 4314 CPU
>>> @ 2.40GHz processor with a fibre channel connection to a SAN switch,
>>> through a QLogic adapter.
>>> An IBM Power 10 connected to the same SAN switch, with a linux partition
>>> to test the backup performance
>>> The Lenovo VTL server as a LUN created in an IBM storage (SSD disks).
>>> The linux partition also have SSD disks.
>>> If we write in that LUN using the VTL, we have no performance issues. If
>>> we write in the linux IBM partition disks using the linux partition we do
>>> not have any performance problem. But if we try to copy files to the VTL
>>> using the linux partition (or even the IBMi), it takes twice the time to do
>>> the same backup to a real Tape. Is it normal? We are not using compression
>>> or deduplication.
>>>
>>> Kind Regards
>>>
>>> --
>>> You received this message because you are subscribed to the Google
>>> Groups "QUADStor VTL" group.
>>> To unsubscribe from this group and stop receiving emails from it, send
>>> an email to quadstor-vtl...@googlegroups.com.
>>> To view this discussion on the web visit
>>> https://groups.google.com/d/msgid/quadstor-vtl/c656564d-0180-421f-bc2d-4b69c143f4c8n%40googlegroups.com
>>> 
>>> .
>>>
>> --
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Re: [quadstor-vtl] Slow backup performance

[Ribeiro Francisco]

Hello,

I've deleted my previous reply since you asked me to send the logs to that 
specific email.
Logs were sent.
Also, yes, the physical tape is connected to the same partition.

Kind regards


A sexta-feira, 21 de julho de 2023 à(s) 15:54:22 UTC+1, quadstor escreveu:

> Hi,
>
> Please send the diagnostic logs (HTML UI -> System Page -> Run Diagnostics 
> -> Submit). You can send the logs to vtlsu...@quadstor.com
>
> Is the backup to physical tape connected to the same partition ? What is 
> the backup speed to physical tape ?
>
>
> On Fri, Jul 21, 2023 at 3:52 PM Ribeiro Francisco  
> wrote:
>
>> Hello,
>>
>> We have the following scenario:
>> A Lenovo Server with 64GB Memory and an Intel(R) Xeon(R) Silver 4314 CPU 
>> @ 2.40GHz processor with a fibre channel connection to a SAN switch, 
>> through a QLogic adapter.
>> An IBM Power 10 connected to the same SAN switch, with a linux partition 
>> to test the backup performance
>> The Lenovo VTL server as a LUN created in an IBM storage (SSD disks). The 
>> linux partition also have SSD disks.
>> If we write in that LUN using the VTL, we have no performance issues. If 
>> we write in the linux IBM partition disks using the linux partition we do 
>> not have any performance problem. But if we try to copy files to the VTL 
>> using the linux partition (or even the IBMi), it takes twice the time to do 
>> the same backup to a real Tape. Is it normal? We are not using compression 
>> or deduplication.
>>
>> Kind Regards
>>
>> -- 
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>>  
>> 
>> .
>>
>

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Re: [quadstor-vtl] Slow backup performance

[QUADStor VTL Support]

Hi,

Please send the diagnostic logs (HTML UI -> System Page -> Run Diagnostics
-> Submit). You can send the logs to vtlsupp...@quadstor.com

Is the backup to physical tape connected to the same partition ? What is
the backup speed to physical tape ?


On Fri, Jul 21, 2023 at 3:52 PM Ribeiro Francisco 
wrote:

> Hello,
>
> We have the following scenario:
> A Lenovo Server with 64GB Memory and an Intel(R) Xeon(R) Silver 4314 CPU @
> 2.40GHz processor with a fibre channel connection to a SAN switch, through
> a QLogic adapter.
> An IBM Power 10 connected to the same SAN switch, with a linux partition
> to test the backup performance
> The Lenovo VTL server as a LUN created in an IBM storage (SSD disks). The
> linux partition also have SSD disks.
> If we write in that LUN using the VTL, we have no performance issues. If
> we write in the linux IBM partition disks using the linux partition we do
> not have any performance problem. But if we try to copy files to the VTL
> using the linux partition (or even the IBMi), it takes twice the time to do
> the same backup to a real Tape. Is it normal? We are not using compression
> or deduplication.
>
> Kind Regards
>
> --
> You received this message because you are subscribed to the Google Groups
> "QUADStor VTL" group.
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> https://groups.google.com/d/msgid/quadstor-vtl/c656564d-0180-421f-bc2d-4b69c143f4c8n%40googlegroups.com
> 
> .
>

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