Integrated Backup Encryption and compression

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Integrated Backup Encryption and compression

1. Integrated Backup Encryption and compression

0 Like
Mark Collins
Posted Mon March 30, 2020 04:49 PM

Reply
We're in the process of planning a move from 11.50 on HP-UX to 14.10 on Linux, and I have a question about the Integrated Backup Encryption feature in 14.10. Can the archives/backups be compressed?

I'm asking because the compression usually only works well on unencrypted data. Once encrypted, the data usually does not have enough repeating character strings to give good compression results. From a recent test with an 11.50 instance, I can do a level 1 archive of a dev instance that takes 530 MB. If I compress that archive, I can get it down under 100 MB, a reduction of a bit over 82%. But if I PGP encrypt the archive before attempting to compress (and I disable the compress option in PGP), the encryption adds a small amount of overhead, increasing the file size by just a few MB, but that encrypted archive then does not compress at all. In fact, compressing the encrypted file adds yet another MB or two.

So, does the Integrated Backup Encryption allow the archives and/or backups to be compressed? What configuration options need to be tweaked to make that happen? Are the BACKUP_FILTER / RESTORE_FILTER parameters still used in 14.10 when using the backup encryption? For those who have implemented Integrated Backup Encryption along with compression (assuming it's feasible), what kind of compression ratios are you seeing?

Thanks in advance.

------------------------------
Mark Collins
------------------------------

#Informix

2. RE: Integrated Backup Encryption and compression

Like

SangGyu Jeong

Posted Mon March 30, 2020 09:13 PM

Hi Mark, I have tested doing ontape backup using local encryption key.
When creating a local encryption key, I referenced the article below.
https://www.ibm.com/support/knowledgecenter/SSGU8G_14.1.0/com.ibm.bar.doc/ids_bar_local_encryption_key.htm
The results show that the encrypted backup file is compressed well.

-- 1. Perform ontape backup without integrated backup encryption setting

[informix@db2 backups]$ onstat -c | egrep '^BACKUP_FILTER|^RESTORE_FILTER|^BAR_ENC'
BACKUP_FILTER
RESTORE_FILTER
BAR_ENCRYPTION
[informix@db2 backups]$ ontape -s -L 0
10 percent done.
20 percent done.
30 percent done.
40 percent done.
100 percent done.
File created: /work1/informix/ids1410fc3/backups/db2_0_L0

Please label this tape as number 1 in the arc tape sequence.
This tape contains the following logical logs:

 247

Program over.
[informix@db2 backups]$ ls -la
total 266788
drwxrwxr-x.  3 informix informix        33 Mar 31 09:54 .
drwxr-xr-x. 28 informix informix      4096 Mar 21 22:30 ..
-rw-rw----.  1 informix informix 273186816 Mar 31 09:54 db2_0_L0
drwxrwxr-x.  2 informix informix       182 Mar 31 09:51 tmp


-- 2. Perform ontape backup with integrated backup encryption setting

[informix@db2 backups]$ openssl rand -base64 24 > /work1/informix/ids1410fc3/etc/l_key192
[informix@db2 backups]$ vi $INFORMIXDIR/etc/$ONCONFIG
[informix@db2 backups]$ onstat -c | egrep '^BACKUP_FILTER|^RESTORE_FILTER|^BAR_ENC'
BACKUP_FILTER
RESTORE_FILTER
BAR_ENCRYPTION keyfile=/work1/informix/ids1410fc3/etc/l_key192,cipher=aes192
[informix@db2 backups]$ ontape -s -L 0
The backup volume will be encrypted.
10 percent done.
20 percent done.
30 percent done.
40 percent done.
100 percent done.
File created: /work1/informix/ids1410fc3/backups/db2_0_L0

Please label this tape as number 1 in the arc tape sequence.
This tape contains the following logical logs:

 247

Program over.
[informix@db2 backups]$ ls -la
total 533572
drwxrwxr-x.  3 informix informix        65 Mar 31 09:55 .
drwxr-xr-x. 28 informix informix      4096 Mar 21 22:30 ..
-rw-rw----.  1 informix informix 273186816 Mar 31 09:54 db2_0_20200331_095432_L0
-rw-rw----.  1 informix informix 273186816 Mar 31 09:55 db2_0_L0
drwxrwxr-x.  2 informix informix       182 Mar 31 09:51 tmp


-- 3. Check backup file contents

[informix@db2 backups]$ strings db2_0_20200331_095432_L0 | head -30
Archive Backup TapeIBM Informix Dynamic Server Version 14.10.FC3DETue Mar 31 09:54:32 2020informix/dev/pts/0
/work1/informix/ids1410fc3/backups/
rootdbs                                                                                                                         plog                                                                                                                            llog                                                                                                                            datadbs1                                                                                                                        datadbs2                                                                                                                        datadbs3                                                                                                                        data8dbs1                                                                                                                       data8dbs2                                                                                                                       data8dbs3                                                                                                                       sbspace1
IBM Informix Dynamic Server Copyright 2001, 2019  IBM Corporation
14.10.xC2
        F"01-2020
ROOTNAME rootdbs
ROOTPATH /work1/informix/ids1410fc3/storage/rootdbs
ROOTOFFSET 0
ROOTSIZE 157696
MIRROR 0
MIRRORPATH /work1/informix/ids1410fc3/tmp/demo_on.root_mirror
MIRROROFFSET 0
DBSERVERNAME ol_informix1410
SERVERNUM 0
MSGPATH /work1/informix/ids1410fc3/ol_informix1410.log
TAPEDEV /work1/informix/ids1410fc3/backups
TAPESIZE 0
TAPEBLK 32
LTAPEDEV /dev/null
LTAPESIZE 0
LTAPEBLK 32
PHYSFILE 65430
PHYSBUFF 512
LOGFILES 20
LOGSIZE 6144
LOGBUFF 256
DYNAMIC_LOGS 2
LTXHWM 70
LTXEHWM 80
[informix@db2 backups]$ strings db2_0_L0 | head -30
Archive Backup TapeIBM Informix Dynamic Server Version 14.10.FC3DETue Mar 31 09:55:07 2020informix/dev/pts/0
/work1/informix/ids1410fc3/backups/
aes192
DQZQ
QX9p
a5b(
H%*g
wecI
)rO0"
z\$b
#_t;
azXX
aW`g
$9s~f
{Rus
T<.u
(;*&
[!wS
{'dT
g9c%
k#|~
G)9)1
>X2B
CnSq
]SJ~
kmt9
ol!n
>JMsy
b!9~`
[C4R


-- 4. Perform ontape backup with BACKUP_FILTER and integrated backup encryption settings

[informix@db2 backups]$ vi $INFORMIXDIR/etc/$ONCONFIG
[informix@db2 backups]$ onstat -c | egrep '^BACKUP_FILTER|^RESTORE_FILTER|^BAR_ENC'
BACKUP_FILTER /bin/gzip
RESTORE_FILTER /bin/gunzip
BAR_ENCRYPTION keyfile=/work1/informix/ids1410fc3/etc/l_key192,cipher=aes192
[informix@db2 backups]$ ontape -s -L 0
The backup volume will be encrypted.
Using the backup and restore filter /bin/gzip.
10 percent done.
20 percent done.
30 percent done.
40 percent done.
100 percent done.
File created: /work1/informix/ids1410fc3/backups/db2_0_L0

Please label this tape as number 1 in the arc tape sequence.
This tape contains the following logical logs:

 247

Program over.
[informix@db2 backups]$ ls -la
total 548100
drwxrwxr-x.  3 informix informix        97 Mar 31 09:56 .
drwxr-xr-x. 28 informix informix      4096 Mar 21 22:30 ..
-rw-rw----.  1 informix informix 273186816 Mar 31 09:54 db2_0_20200331_095432_L0
-rw-rw----.  1 informix informix 273186816 Mar 31 09:55 db2_0_20200331_095507_L0
-rw-rw----.  1 informix informix  14876672 Mar 31 09:56 db2_0_L0
drwxrwxr-x.  2 informix informix       182 Mar 31 09:51 tmp

------------------------------
SangGyu Jeong
Software Engineer
Infrasoft
Seoul Korea, Republic of
------------------------------

Original Message

3. RE: Integrated Backup Encryption and compression

Like

Mark Collins

Posted Tue March 31, 2020 12:04 PM

SangGyu,

Thank you for testing this and posting your results. That is a big relief.

We're currently in the process of setting up a couple of sandbox environments where I'll be playing with this, along with other functions, as we prepare for our upgrade.

------------------------------
Mark Collins
------------------------------

Original Message

Original Message:
Sent: Mon March 30, 2020 09:12 PM
From: SangGyu Jeong
Subject: Integrated Backup Encryption and compression

Hi Mark, I have tested doing ontape backup using local encryption key.
When creating a local encryption key, I referenced the article below.
https://www.ibm.com/support/knowledgecenter/SSGU8G_14.1.0/com.ibm.bar.doc/ids_bar_local_encryption_key.htm
The results show that the encrypted backup file is compressed well.

-- 1. Perform ontape backup without integrated backup encryption setting[informix@db2 backups]$ onstat -c | egrep '^BACKUP_FILTER|^RESTORE_FILTER|^BAR_ENC'BACKUP_FILTERRESTORE_FILTERBAR_ENCRYPTION[informix@db2 backups]$ ontape -s -L 010 percent done.20 percent done.30 percent done.40 percent done.100 percent done.File created: /work1/informix/ids1410fc3/backups/db2_0_L0Please label this tape as number 1 in the arc tape sequence.This tape contains the following logical logs: 247Program over.[informix@db2 backups]$ ls -latotal 266788drwxrwxr-x.  3 informix informix        33 Mar 31 09:54 .drwxr-xr-x. 28 informix informix      4096 Mar 21 22:30 ..-rw-rw----.  1 informix informix 273186816 Mar 31 09:54 db2_0_L0drwxrwxr-x.  2 informix informix       182 Mar 31 09:51 tmp-- 2. Perform ontape backup with integrated backup encryption setting[informix@db2 backups]$ openssl rand -base64 24 > /work1/informix/ids1410fc3/etc/l_key192[informix@db2 backups]$ vi $INFORMIXDIR/etc/$ONCONFIG[informix@db2 backups]$ onstat -c | egrep '^BACKUP_FILTER|^RESTORE_FILTER|^BAR_ENC'BACKUP_FILTERRESTORE_FILTERBAR_ENCRYPTION keyfile=/work1/informix/ids1410fc3/etc/l_key192,cipher=aes192[informix@db2 backups]$ ontape -s -L 0The backup volume will be encrypted.10 percent done.20 percent done.30 percent done.40 percent done.100 percent done.File created: /work1/informix/ids1410fc3/backups/db2_0_L0Please label this tape as number 1 in the arc tape sequence.This tape contains the following logical logs: 247Program over.[informix@db2 backups]$ ls -latotal 533572drwxrwxr-x.  3 informix informix        65 Mar 31 09:55 .drwxr-xr-x. 28 informix informix      4096 Mar 21 22:30 ..-rw-rw----.  1 informix informix 273186816 Mar 31 09:54 db2_0_20200331_095432_L0-rw-rw----.  1 informix informix 273186816 Mar 31 09:55 db2_0_L0drwxrwxr-x.  2 informix informix       182 Mar 31 09:51 tmp-- 3. Check backup file contents[informix@db2 backups]$ strings db2_0_20200331_095432_L0 | head -30Archive Backup TapeIBM Informix Dynamic Server Version 14.10.FC3DETue Mar 31 09:54:32 2020informix/dev/pts/0/work1/informix/ids1410fc3/backups/rootdbs                                                                                                                         plog                                                                                                                            llog                                                                                                                            datadbs1                                                                                                                        datadbs2                                                                                                                        datadbs3                                                                                                                        data8dbs1                                                                                                                       data8dbs2                                                                                                                       data8dbs3                                                                                                                       sbspace1IBM Informix Dynamic Server Copyright 2001, 2019  IBM Corporation14.10.xC2        F"01-2020ROOTNAME rootdbsROOTPATH /work1/informix/ids1410fc3/storage/rootdbsROOTOFFSET 0ROOTSIZE 157696MIRROR 0MIRRORPATH /work1/informix/ids1410fc3/tmp/demo_on.root_mirrorMIRROROFFSET 0DBSERVERNAME ol_informix1410SERVERNUM 0MSGPATH /work1/informix/ids1410fc3/ol_informix1410.logTAPEDEV /work1/informix/ids1410fc3/backupsTAPESIZE 0TAPEBLK 32LTAPEDEV /dev/nullLTAPESIZE 0LTAPEBLK 32PHYSFILE 65430PHYSBUFF 512LOGFILES 20LOGSIZE 6144LOGBUFF 256DYNAMIC_LOGS 2LTXHWM 70LTXEHWM 80[informix@db2 backups]$ strings db2_0_L0 | head -30Archive Backup TapeIBM Informix Dynamic Server Version 14.10.FC3DETue Mar 31 09:55:07 2020informix/dev/pts/0/work1/informix/ids1410fc3/backups/aes192DQZQQX9pa5b(H%*gwecI)rO0"z\$b#_t;azXXaW`g$9s~f{RusT<.u(;*&[!wS{'dTg9c%k#|~G)9)1>X2BCnSq]SJ~kmt9ol!n>JMsyb!9~`[C4R-- 4. Perform ontape backup with BACKUP_FILTER and integrated backup encryption settings[informix@db2 backups]$ vi $INFORMIXDIR/etc/$ONCONFIG[informix@db2 backups]$ onstat -c | egrep '^BACKUP_FILTER|^RESTORE_FILTER|^BAR_ENC'BACKUP_FILTER /bin/gzipRESTORE_FILTER /bin/gunzipBAR_ENCRYPTION keyfile=/work1/informix/ids1410fc3/etc/l_key192,cipher=aes192[informix@db2 backups]$ ontape -s -L 0The backup volume will be encrypted.Using the backup and restore filter /bin/gzip.10 percent done.20 percent done.30 percent done.40 percent done.100 percent done.File created: /work1/informix/ids1410fc3/backups/db2_0_L0Please label this tape as number 1 in the arc tape sequence.This tape contains the following logical logs: 247Program over.[informix@db2 backups]$ ls -latotal 548100drwxrwxr-x.  3 informix informix        97 Mar 31 09:56 .drwxr-xr-x. 28 informix informix      4096 Mar 21 22:30 ..-rw-rw----.  1 informix informix 273186816 Mar 31 09:54 db2_0_20200331_095432_L0-rw-rw----.  1 informix informix 273186816 Mar 31 09:55 db2_0_20200331_095507_L0-rw-rw----.  1 informix informix  14876672 Mar 31 09:56 db2_0_L0drwxrwxr-x.  2 informix informix       182 Mar 31 09:51 tmp

------------------------------
SangGyu Jeong
Software Engineer
Infrasoft
Seoul Korea, Republic of

Original Message:
Sent: Mon March 30, 2020 04:48 PM
From: Mark Collins
Subject: Integrated Backup Encryption and compression

We're in the process of planning a move from 11.50 on HP-UX to 14.10 on Linux, and I have a question about the Integrated Backup Encryption feature in 14.10. Can the archives/backups be compressed?

I'm asking because the compression usually only works well on unencrypted data. Once encrypted, the data usually does not have enough repeating character strings to give good compression results. From a recent test with an 11.50 instance, I can do a level 1 archive of a dev instance that takes 530 MB. If I compress that archive, I can get it down under 100 MB, a reduction of a bit over 82%. But if I PGP encrypt the archive before attempting to compress (and I disable the compress option in PGP), the encryption adds a small amount of overhead, increasing the file size by just a few MB, but that encrypted archive then does not compress at all. In fact, compressing the encrypted file adds yet another MB or two.

So, does the Integrated Backup Encryption allow the archives and/or backups to be compressed? What configuration options need to be tweaked to make that happen? Are the BACKUP_FILTER / RESTORE_FILTER parameters still used in 14.10 when using the backup encryption? For those who have implemented Integrated Backup Encryption along with compression (assuming it's feasible), what kind of compression ratios are you seeing?

Thanks in advance.

------------------------------
Mark Collins
------------------------------

#Informix

4. RE: Integrated Backup Encryption and compression

Like

SangGyu Jeong

Posted Tue March 31, 2020 12:20 PM

The upgrade from version 11.50 to version 14.10 may have quite a lot to consider. I hope you have a smooth upgrade!

------------------------------
SangGyu Jeong
Software Engineer
Infrasoft
Seoul Korea, Republic of
------------------------------

Original Message

Original Message:
Sent: Tue March 31, 2020 12:04 PM
From: Mark Collins
Subject: Integrated Backup Encryption and compression

SangGyu,

Thank you for testing this and posting your results. That is a big relief.

We're currently in the process of setting up a couple of sandbox environments where I'll be playing with this, along with other functions, as we prepare for our upgrade.

------------------------------
Mark Collins

Original Message:
Sent: Mon March 30, 2020 09:12 PM
From: SangGyu Jeong
Subject: Integrated Backup Encryption and compression

Hi Mark, I have tested doing ontape backup using local encryption key.
When creating a local encryption key, I referenced the article below.
https://www.ibm.com/support/knowledgecenter/SSGU8G_14.1.0/com.ibm.bar.doc/ids_bar_local_encryption_key.htm
The results show that the encrypted backup file is compressed well.

-- 1. Perform ontape backup without integrated backup encryption setting[informix@db2 backups]$ onstat -c | egrep '^BACKUP_FILTER|^RESTORE_FILTER|^BAR_ENC'BACKUP_FILTERRESTORE_FILTERBAR_ENCRYPTION[informix@db2 backups]$ ontape -s -L 010 percent done.20 percent done.30 percent done.40 percent done.100 percent done.File created: /work1/informix/ids1410fc3/backups/db2_0_L0Please label this tape as number 1 in the arc tape sequence.This tape contains the following logical logs: 247Program over.[informix@db2 backups]$ ls -latotal 266788drwxrwxr-x.  3 informix informix        33 Mar 31 09:54 .drwxr-xr-x. 28 informix informix      4096 Mar 21 22:30 ..-rw-rw----.  1 informix informix 273186816 Mar 31 09:54 db2_0_L0drwxrwxr-x.  2 informix informix       182 Mar 31 09:51 tmp-- 2. Perform ontape backup with integrated backup encryption setting[informix@db2 backups]$ openssl rand -base64 24 > /work1/informix/ids1410fc3/etc/l_key192[informix@db2 backups]$ vi $INFORMIXDIR/etc/$ONCONFIG[informix@db2 backups]$ onstat -c | egrep '^BACKUP_FILTER|^RESTORE_FILTER|^BAR_ENC'BACKUP_FILTERRESTORE_FILTERBAR_ENCRYPTION keyfile=/work1/informix/ids1410fc3/etc/l_key192,cipher=aes192[informix@db2 backups]$ ontape -s -L 0The backup volume will be encrypted.10 percent done.20 percent done.30 percent done.40 percent done.100 percent done.File created: /work1/informix/ids1410fc3/backups/db2_0_L0Please label this tape as number 1 in the arc tape sequence.This tape contains the following logical logs: 247Program over.[informix@db2 backups]$ ls -latotal 533572drwxrwxr-x.  3 informix informix        65 Mar 31 09:55 .drwxr-xr-x. 28 informix informix      4096 Mar 21 22:30 ..-rw-rw----.  1 informix informix 273186816 Mar 31 09:54 db2_0_20200331_095432_L0-rw-rw----.  1 informix informix 273186816 Mar 31 09:55 db2_0_L0drwxrwxr-x.  2 informix informix       182 Mar 31 09:51 tmp-- 3. Check backup file contents[informix@db2 backups]$ strings db2_0_20200331_095432_L0 | head -30Archive Backup TapeIBM Informix Dynamic Server Version 14.10.FC3DETue Mar 31 09:54:32 2020informix/dev/pts/0/work1/informix/ids1410fc3/backups/rootdbs                                                                                                                         plog                                                                                                                            llog                                                                                                                            datadbs1                                                                                                                        datadbs2                                                                                                                        datadbs3                                                                                                                        data8dbs1                                                                                                                       data8dbs2                                                                                                                       data8dbs3                                                                                                                       sbspace1IBM Informix Dynamic Server Copyright 2001, 2019  IBM Corporation14.10.xC2        F"01-2020ROOTNAME rootdbsROOTPATH /work1/informix/ids1410fc3/storage/rootdbsROOTOFFSET 0ROOTSIZE 157696MIRROR 0MIRRORPATH /work1/informix/ids1410fc3/tmp/demo_on.root_mirrorMIRROROFFSET 0DBSERVERNAME ol_informix1410SERVERNUM 0MSGPATH /work1/informix/ids1410fc3/ol_informix1410.logTAPEDEV /work1/informix/ids1410fc3/backupsTAPESIZE 0TAPEBLK 32LTAPEDEV /dev/nullLTAPESIZE 0LTAPEBLK 32PHYSFILE 65430PHYSBUFF 512LOGFILES 20LOGSIZE 6144LOGBUFF 256DYNAMIC_LOGS 2LTXHWM 70LTXEHWM 80[informix@db2 backups]$ strings db2_0_L0 | head -30Archive Backup TapeIBM Informix Dynamic Server Version 14.10.FC3DETue Mar 31 09:55:07 2020informix/dev/pts/0/work1/informix/ids1410fc3/backups/aes192DQZQQX9pa5b(H%*gwecI)rO0"z\$b#_t;azXXaW`g$9s~f{RusT<.u(;*&[!wS{'dTg9c%k#|~G)9)1>X2BCnSq]SJ~kmt9ol!n>JMsyb!9~`[C4R-- 4. Perform ontape backup with BACKUP_FILTER and integrated backup encryption settings[informix@db2 backups]$ vi $INFORMIXDIR/etc/$ONCONFIG[informix@db2 backups]$ onstat -c | egrep '^BACKUP_FILTER|^RESTORE_FILTER|^BAR_ENC'BACKUP_FILTER /bin/gzipRESTORE_FILTER /bin/gunzipBAR_ENCRYPTION keyfile=/work1/informix/ids1410fc3/etc/l_key192,cipher=aes192[informix@db2 backups]$ ontape -s -L 0The backup volume will be encrypted.Using the backup and restore filter /bin/gzip.10 percent done.20 percent done.30 percent done.40 percent done.100 percent done.File created: /work1/informix/ids1410fc3/backups/db2_0_L0Please label this tape as number 1 in the arc tape sequence.This tape contains the following logical logs: 247Program over.[informix@db2 backups]$ ls -latotal 548100drwxrwxr-x.  3 informix informix        97 Mar 31 09:56 .drwxr-xr-x. 28 informix informix      4096 Mar 21 22:30 ..-rw-rw----.  1 informix informix 273186816 Mar 31 09:54 db2_0_20200331_095432_L0-rw-rw----.  1 informix informix 273186816 Mar 31 09:55 db2_0_20200331_095507_L0-rw-rw----.  1 informix informix  14876672 Mar 31 09:56 db2_0_L0drwxrwxr-x.  2 informix informix       182 Mar 31 09:51 tmp

------------------------------
SangGyu Jeong
Software Engineer
Infrasoft
Seoul Korea, Republic of

Original Message:
Sent: Mon March 30, 2020 04:48 PM
From: Mark Collins
Subject: Integrated Backup Encryption and compression

We're in the process of planning a move from 11.50 on HP-UX to 14.10 on Linux, and I have a question about the Integrated Backup Encryption feature in 14.10. Can the archives/backups be compressed?

I'm asking because the compression usually only works well on unencrypted data. Once encrypted, the data usually does not have enough repeating character strings to give good compression results. From a recent test with an 11.50 instance, I can do a level 1 archive of a dev instance that takes 530 MB. If I compress that archive, I can get it down under 100 MB, a reduction of a bit over 82%. But if I PGP encrypt the archive before attempting to compress (and I disable the compress option in PGP), the encryption adds a small amount of overhead, increasing the file size by just a few MB, but that encrypted archive then does not compress at all. In fact, compressing the encrypted file adds yet another MB or two.

So, does the Integrated Backup Encryption allow the archives and/or backups to be compressed? What configuration options need to be tweaked to make that happen? Are the BACKUP_FILTER / RESTORE_FILTER parameters still used in 14.10 when using the backup encryption? For those who have implemented Integrated Backup Encryption along with compression (assuming it's feasible), what kind of compression ratios are you seeing?

Thanks in advance.

------------------------------
Mark Collins
------------------------------

#Informix

5. RE: Integrated Backup Encryption and compression

1 Like
Ramon Rey
Posted Tue March 31, 2020 01:35 PM

Reply
Hello Mark,
Adding to SangGyu's reply, I would highly recommend you use "gzip -1" as your backup filter, as the difference in compression between compression 1 (which is the minimum and faster compression) and gzip's default compression of 6 (out of 9 which is the maximum but slow compression) is negligible, but the difference in performance is substantial.
YMMV.
Cheers!

------------------------------
Ramon Rey
Any opinions I express here are my own and not the views of my employer.
------------------------------

Original Message
6. RE: Integrated Backup Encryption and compression

0 Like
Mark Collins
Posted Tue March 31, 2020 01:38 PM

Reply
Ramon,

Thanks for that suggestion. I'll add that to the list of things to test.

------------------------------
Mark Collins
------------------------------

Original Message
7. RE: Integrated Backup Encryption and compression

1 Like
Doug Lawry
Posted Wed April 01, 2020 04:11 AM

Reply
Also consider "pigz" which is multi-threaded and therefore much faster. It uses "zlib" so is inter-operable with "gzip". You can compile it from the source code here:

https://zlib.net/pigz

------------------------------
Doug Lawry
------------------------------

Original Message

Informix