01-21-2018 12:30 PM - edited 03-08-2019 01:30 PM
Guys, please let me know how to utilize the SD card memory for keeping more IOS files in 4500X series switches. What is the command to store image in SD card instead of Bootflash:
I also need to know if I do not have an SD card, but the switch Bootflash has enough memory so can I keep 3 images at the same time in Bootflash?
Will it slow down the switch operation or NVRAM won't let the performance go down since 4500X series has 2GB NVRAM.
Solved! Go to Solution.
01-22-2018 07:47 AM
Hi,
Is the Bootflash of 4500x is really 2Gb?
Yes, you are correct. The data sheet does not mention the flash size. So, I looked at a live switch and was able to determine the 2Gig. If you have a switch, you can simply issue "sh flash" and add all the numbers. It is not exactly 2Gig but it is close to it. For example, I see below numbers:
1293996032 bytes available (312090624 bytes used)
So, if you add the available bytes to bytes used, the total is about 1.5Gig. With some overhead, I think the flash card is 2Gig but regardless of the size, there is enough room for at least 3 images.
HTH
01-21-2018 01:27 PM
You should not SD card as the flash on the 4500x is about 2Gig and you should not have any issue loading multiple versions. Each IOS version should be less than 300Mb. Also, adding multiple versions to the flash card has no impact on NVRAM and/or performance.
HTH
01-21-2018 09:08 PM
thank you so much Reza!
Yes, all the images are less than 300Mb and I wanna keep 3 or 4 of them.
But I couldn't find in the datasheets of 4500x that Flash size is 2GB, they only mentioned the NVRAM size and that's 2Gb.
Is the Bootflash of 4500x is really 2Gb?
01-22-2018 07:47 AM
Hi,
Is the Bootflash of 4500x is really 2Gb?
Yes, you are correct. The data sheet does not mention the flash size. So, I looked at a live switch and was able to determine the 2Gig. If you have a switch, you can simply issue "sh flash" and add all the numbers. It is not exactly 2Gig but it is close to it. For example, I see below numbers:
1293996032 bytes available (312090624 bytes used)
So, if you add the available bytes to bytes used, the total is about 1.5Gig. With some overhead, I think the flash card is 2Gig but regardless of the size, there is enough room for at least 3 images.
HTH
01-27-2018 11:39 AM
Thanks so much Reza!
I successfully upgraded all the 4500X nodes in my topology.
However, whilst upgrading process a message appeared that Cisco Smart Install feature is enabled, please use no vstack global configuration command to disable it if you are not actively using the Smart Install feature.
I seriously never used it, but will disabling it affect the process of making VSS pairs and their functionality. The word 'vstack' is kinda new to me for Cisco boxes.
Please let me know your opinion on this.
01-27-2018 02:05 PM
If you're not using Zero-Touch SmartInstall then it's safe to disable it by using the command "no vstack".
01-21-2018 10:48 PM
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